acide citrique

Additif alimentaire : E330 (EU 1333/2008) | Codex: 330
quantum satis
Klasyfikacja CLP (H-statements): H315 (Skin corrosion/irritation), H319 (Serious eye damage/eye irritation), H335 (Specific target organ toxicity, single exposure) (PubChem GHS)

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MolGod_SDSCARD_1
REACH 2020/878
v5 · 22.07.2026
🧬 Visualiseur de molécule 3D
Chargement de la molécule...
Modèle 3D Citric Acid, CAS 77-92-9, formule brute C6H8O7, masse molaire 192.12 g/mol
Aperçu chimique: Citric AcidMolGod_OVERVIEW_1
Formule bruteC6H8O7
Masse moléculaire192.12 g/mol
Point de fusion153 °C
Densité1.542 g/cm³
LogP (lipophilie)-1.64
pKa3.128
Nom IUPAC2-hydroxypropane-1,2,3-tricarboxylic acid
SMILESC(C(=O)O)C(CC(=O)O)(C(=O)O)O
InChIKeyKRKNYBCHXYNGOX-UHFFFAOYSA-N

Synonymes: citric acid · 77-92-9 · 2-hydroxypropane-1,2,3-tricarboxylic acid · Citric acid, anhydrous · Aciletten

Sources des données : PubChem (NLM/NIH), CRC Handbook 105th ed. (2024)
Dernière mise à jour : 2026-11-10

RECHERCHE SCIENTIFIQUE

[1]EuropePMC2026
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Ma
[2]PubMed2025
York G; Kelly AW; Robison L; Iuzzolino L; Lee AY. 2025. "Revisiting the solid-state landscape of creatine citric acid: A salt or a cocrystal?." Journal of pharmaceutical sciences. https://doi.org/10.1
Analytical Research & Development
[3]PubMed2025
Ugarte-Pereyra C; Argyri SM; Bordes R; Vincent-Bonnieu S; Beaucé J; Binks BP. 2025. "Design of oleofoams from citric acid esters of mono-/diglycerides." Food research international (Ottawa, Ont.). htt
University Lille
📊 Propriétés physicochimiques

Aperçu rapide

Formule : C6H8O7
MW : 192.12 g/mol
CAS : 77-92-9
Aspect : Crystals; monoclinic holohedra; crystallizes from hot concentrated aqueous solution
Odeur : Odorless
Odeur : Odorless

Propriétés détaillées

Propriété Valeur Unité Conditions Source
Masse volumique (ρ) 1.5420 g/cm³ 20 °C (68 °F) CRC Handbook 105th ed. (2024)
Point de fusion (mp) 153.00 °C (307.4 °F) decomp. CRC Handbook 105th ed. (2024)
Point d'ébullition (bp) Decomposes (NTP, 1992) PubChem (NIH/NLM) ↗
Point d'éclair 100 °C (212 °F) PubChem (NIH/NLM) ↗
Solubilité dans l'eau greater than or equal to 100 mg/mL at 72 °F (NTP, 1992) PubChem (NIH/NLM) ↗
Viscosité (η) 2.549 cP 30% aqueous solution at 20 °C (68 °F) PubChem (NIH/NLM) ↗
Indice de réfraction (nD) 1.4930 20 °C (68 °F), D-line CRC Handbook 105th ed. (2024)
pKa 3.128 25 °C (77 °F) CRC Handbook 105th ed. (2024)
🔬 Propriétés avancées
Capacité thermique (Cp) 1.135 J/(g·K) 25°C

Identifiants chimiques

SMILES: C(C(=O)O)C(CC(=O)O)(C(=O)O)O
InChI: InChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
InChIKey: KRKNYBCHXYNGOX-UHFFFAOYSA-N

Sources des données : PubChem, NIST Chemistry WebBook, CRC Handbook of Chemistry and Physics (103rd ed.)

Dernière mise à jour : 2026-04-27

Statut réglementaire de la substance
Cette substance est soumise à des exigences réglementaires : gestion des déchets dangereux (BDO). Détails dans la section « Statut réglementaire (REACH/ECHA/CLP) » et sur la FDS. Information réglementaire — ne restreint pas l'achat dans la boutique.
🧮 Calculateur stœchiométriqueMolGod_STOICH_1
🔍 Identifiants externesMolGod_EXTID_1
16 sur 16 systèmes d'ID100%
Base de donnéesIdentifiantActions
CAS Registry Number77-92-9Ouvrir →
PubChem CID311Ouvrir →
InChIKeyKRKNYBCHXYNGOX-UHFFFAOYSA-NOuvrir →
InChIInChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h…
SMILESC(C(=O)O)C(CC(=O)O)(C(=O)O)O
EC Number201-069-1Ouvrir →
ChEMBLCHEMBL1261Ouvrir →
DrugBankDB04272Ouvrir →
KEGG CompoundD00037Ouvrir →
HMDBHMDB0000094Ouvrir →
ChemSpider305Ouvrir →
CompTox DTXSID (EPA)DTXSID3020332Ouvrir →
MeSH UID (NLM)D019343Ouvrir →
UNII (FDA)XF417D3PSLOuvrir →
NSC Number (NCI)30279Ouvrir →
WikiData QIDQ159683Ouvrir →

Sources : PubChem (NIH), Wikidata SPARQL, KEGG, ChEMBL (EBI), CompTox CTX (EPA).

📡 Spectroscopie — CAS 77-92-9MolGod_SPECHUB_MAIN
📊 Spectres (NMR, IR, MS, UV-Vis) (1)

Types de spectres disponibles : IR

Spectre IR (KBr, 4000-400 cm⁻¹)

477 points de données · Source : NIST WebBook · NIST ↗ · 📥 JCAMP-DX
📋 Tableau des pics (peak assignment)
Type Position Intensité Attribution
IR 4000 0.9 —
IR 3997 0.9 —
IR 3994 0.9 —
IR 3981 0.9 —
IR 3978 0.9 —
IR 3965 0.9 —
IR 3962 0.9 —
IR 3959 0.9 —
IR 3946 0.9 —
IR 3943 0.9 —
IR 3930 0.9 —
IR 3927 0.9 —
IR 3924 0.9 —
IR 3911 0.9 —
IR 3908 0.9 —
IR 3895 0.9 —
IR 3892 0.9 —
IR 3889 0.9 —
IR 3876 0.9 —
IR 3873 0.9 —
🎓 Guide d'interprétation des spectres (pour étudiants)
Comment lire un spectre IR
  • 3200-3600 cm⁻¹ — élongation O-H (pic large = liaison hydrogène)
  • 2850-3000 cm⁻¹ — élongation C-H (sp³)
  • 1650-1750 cm⁻¹ — élongation C=O (cétones, aldéhydes, esters)
  • 1400-1600 cm⁻¹ — vibrations du cycle aromatique
  • 1000-1300 cm⁻¹ — élongation C-O (éthers, alcools)
  • Aucune absorption = aucun groupe fonctionnel → comparer avec une référence

Sources : LibreTexts ↗, Silverstein (Spectrometric ID) ↗

📚 Références scientifiques (Chicago Author-Date) (9 sources)

📚 La bibliographie des ouvrages est en attente de génération. Des manuels généraux sélectionnés sont disponibles ci-dessous ; les ouvrages Google Books spécifiques au CAS peuvent être récupérés depuis le panneau d'administration.

  1. National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
  2. Spectral Database for Organic Structure Determination (SDBS). 2024. National Institute of Advanced Industrial Science and Technology (AIST), Japan. Accessed 2025-01-01. ↗
  3. Ulrich, Eldon L., Hideo Akutsu, John F. Doreleijers, Yoko Harano, Yannis E. Ioannidis, Jundong Lin, Miron Livny, et al. 2008. "BioMagResBank." Nucleic Acids Research 36 (D1): D402–D408. [DOI ↗]
  4. Horai, Hisayuki, Masanori Arita, Shigehiko Kanaya, Yoshito Nihei, Tasuku Ikeda, Kazuhiro Suwa, Yuya Ojima, et al. 2010. "MassBank: A Public Repository for Sharing Mass Spectral Data for Life Sciences." Journal of Mass Spectrometry 45 (7): 703–714. [DOI ↗]
  5. Linstrom, P.J., and W.G. Mallard, eds. 2024. NIST Chemistry WebBook, NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. ↗
  6. McDonald, M. Shane, Mike McAvoy, and Ajit Bhalerao. 1988. "JCAMP-DX: A Standard Form for Exchange of Infrared Spectra in Computer Readable Form." Applied Spectroscopy 42 (1): 151–162. [DOI ↗]
  7. PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
📐 Propriétés physico-chimiques (base de données) 10 champs Score MolGod : Primaire
Propriété Valeur Unité Conditions Source
Point de fusion 153.00 [1][6][11] °C decomp. CRC Handbook 105th ed. (2024)
Point d'ébullition rozkłada się [1][6][11] — przed wrzeniem (decomp.) CRC Handbook 105th ed. (2024)
Solubilité dans l'eau 592.000 [1] g/L 20°C CRC Handbook 105th ed. (2024)
Masse volumique (ρ) 1.5420 [1] g/cm³ 20°C CRC Handbook 105th ed. (2024)
Indice de réfraction (n_D) 1.4930 [1] — 20°C, sodium D CRC Handbook 105th ed. (2024)
pKa₁ 3.128 [1][2][10] — 25°C CRC Handbook 105th ed. (2024)
pKa₂ 4.761 [1][2][10] — 25°C CRC Handbook 105th ed. (2024)
pKa₃ 6.396 [1][2][10] — 25°C CRC Handbook 105th ed. (2024)
logP (octanol/eau) -1.640 [1][8][9] — 25°C CRC Handbook 105th ed. (2024)
Chaleur spécifique (cp) 1.135 [1] J/(g·K) 25°C CRC Handbook 105th ed. (2024)
📚 Références scientifiques (Chicago Author-Date) (12 sources)
  1. Haynes, William M., ed. 2024. CRC Handbook of Chemistry and Physics. 105th ed. Boca Raton: CRC Press/Taylor & Francis. ISBN 978-1-032-55554-4. ↗
  2. National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
  3. Yaws, Carl L. 2014. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. 2nd ed. Oxford: Gulf Professional Publishing.
  4. PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
  5. Marrero, J., and R. Gani. 2001. "Group-Contribution Based Estimation of Pure Component Properties." Fluid Phase Equilibria 183–184: 183–208. ↗
  6. Joback, K. G., and R. C. Reid. 1987. "Estimation of Pure-Component Properties from Group-Contributions." Chemical Engineering Communications 57 (1–6): 233–243. ↗
  7. Sangster, J. 1997. Octanol-Water Partition Coefficients: Fundamentals and Physical Chemistry. Chichester: Wiley. ISBN 978-0-471-97397-3.
  8. Mannhold, Raimund, and Han van de Waterbeemd. 2001. "Substructure and Whole Molecule Approaches for Calculating Log P." Journal of Computer-Aided Molecular Design 15 (4): 337–354. ↗
  9. Perrin, Ditlev D., Boyd Dempsey, and E. P. Serjeant. 1981. pKa Prediction for Organic Acids and Bases. London: Chapman and Hall. ISBN 0-412-21090-5.
  10. Constantinou, Leonidas, and Rafiqul Gani. 1994. "New Group Contribution Method for Estimating Properties of Pure Compounds." AIChE Journal 40 (10): 1697–1710. ↗
  11. Ertl, Peter, Bernhard Rohde, and Paul Selzer. 2000. "Fast Calculation of Molecular Polar Surface Area as a Sum of Fragment-Based Contributions and Its Application to the Prediction of Drug Transport Properties." Journal of Medicinal Chemistry 43 (20): 3714–3717. ↗
🔄 Convertisseur d'unités de concentration LIVE MolGod_UNITCONV_1

Saisissez la concentration Citric Acid dans n'importe quelle unité — le reste sera calculé automatiquement.

MW : 192.12 g/mol · IUPAC Gold Book ↗

⚗️ Formules de conversion + citations (par formule)
ConversionFormulePrécisionSource
% (w/v) ↔ molarityc (mol/L) = (% × 10) / MW±0.5% rel. when density ≈ 1.0 g/mLIUPAC (2019)
millimolar ↔ molarc (mol/L) = mM × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
molarity (mol/L)c = n/V = (m/MW)/V±0.1% (depends on MW precision)IUPAC (2019)
parts per million (mg/L) ↔ molarityc (mol/L) = ppm / (1000 × MW); equivalently ppm = mg/L for dilute aqueous±1% (density-independent for dilute solutions)IUPAC (2019)
mg/mL ↔ molarityc (mol/L) = (mg/mL × 1000) / MW / 1000 = mg/mL / MW × 1±0.2%Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
g/L ↔ molarityc (mol/L) = (g/L) / MW±0.1% (depends on MW precision)Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
mmol/L ↔ molarityc (mol/L) = mmol/L × 10⁻³ExactCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
Celsius ↔ KelvinT(K) = t(°C) + 273.15±0.01 K (ITS-90 scale)BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ FahrenheitT(°F) = T(°C) × 9/5 + 32±0.1 °FThompson A, Taylor BN (2008)
density-corrected % ↔ molarityc (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL±0.1% when ρ known to 3 decimalsCohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
📚 Bibliographie (8 sources faisant autorité)
  1. Thompson A, Taylor BN (2008). Guide for the Use of the International System of Units (SI). NIST Special Publication 811 · DOI: 10.6028/NIST.SP.811-2008
    → Primary SI standard for US scientific usage
  2. Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007). Quantities, Units and Symbols in Physical Chemistry — The IUPAC Green Book. RSC Publishing, 3rd ed. · DOI: 10.1039/9781847557889 · ISBN: 978-0-85404-433-7
    → Canonical IUPAC guide for chemistry quantities/units
  3. BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM · ↗
    → International SI definitions (incl. redefined kilogram 2019)
  4. ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 · ↗
    → General rules for physical quantities and units
  5. ISO/IEC (2019). Quantities and units — Part 9: Physical chemistry and molecular physics. International Organization for Standardization — ISO 80000-9:2019 · ↗
    → Concentration / molality / amount-of-substance conventions
  6. Tiesinga E, Mohr PJ, Newell DB, Taylor BN (2021). CODATA recommended values of the fundamental physical constants: 2018. Rev. Mod. Phys. 93(2):025010 · DOI: 10.1103/RevModPhys.93.025010
    → Avogadro, gas constant, molar volume (2019 SI revision)
  7. IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook
    → Definitions of mass fraction, molality, normality, ppm, activity
  8. Mills IM, Cvitaš T, Homann K, Kallay N, Kuchitsu K (1988). Quantities, Units and Symbols in Physical Chemistry. Blackwell Scientific Publications, 1st ed. · ISBN: 0-632-01773-5
    → Historical predecessor of IUPAC Green Book
🧪 Assistant de préparation de solution WIZARD MolGod_PREP_1
① Sélectionnez la concentration
② Volume cible
③ Solvant

Calculs selon : IUPAC Gold Book ↗, Merck ↗

Compatibilité avec les solvantsMolGod_SOLV_1

Estimation basée sur la solubilité dans l'eau et le logP. Données indicatives — ne remplacent pas les études expérimentales.

SolvantCompatibilitéRemarquesRéférences
Water+ Bonnele logP suggère une hydrophilie
EtOH+ BonneEtOH — solvant polaire universel
Acetone~ ModéréePartiellement compatible
DCM- FaibleFaible compatibilité avec les composés polaires
DMSO+ BonneDMSO — solvant aprotique puissant
THF~ ModéréeTHF — limitée pour les composés fortement polaires
Hexane- FaiblePratiquement insoluble dans l'hexane
CHCl3- FaibleFaible compatibilité avec les composés polaires

Sources des données pour logP/solubilité : logP: -1.70

📚 Références scientifiques pour les solvants (Chicago Author-Date) — cliquer pour développer

Chaque solvant dispose de 5 sources scientifiques indépendantes (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/GESTIS). Citations complètes ci-dessous.

Water · NIST CAS lookup ↗
  1. Rumble, John R., ed. 2023. CRC Handbook of Chemistry and Physics. 104th ed. Boca Raton, FL: CRC Press. [link ↗]
  2. International Association for the Properties of Water and Steam (IAPWS). 1997. "Release on the Static Dielectric Constant of Ordinary Water Substance." IAPWS R8-97. [link ↗]
  3. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. https://doi.org/10.1002/9783527632220. [link ↗]
  4. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. https://doi.org/10.1201/9781420006834. [link ↗]
  5. IFA. n.d. "Water." GESTIS Substance Database. Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung. Accessed April 25, 2026. [link ↗]
EtOH · NIST CAS lookup ↗
  1. Rumble, John R., ed. 2023. CRC Handbook of Chemistry and Physics. 104th ed. Boca Raton, FL: CRC Press. [link ↗]
  2. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. https://doi.org/10.1002/9783527632220. [link ↗]
  3. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Hoboken, NJ: Wiley. https://doi.org/10.1002/9780470508183. [link ↗]
  4. Smallwood, Ian M. 1996. Handbook of Organic Solvent Properties. London: Arnold. https://doi.org/10.1016/B978-0-340-64578-9.X5000-9. [link ↗]
  5. IFA. n.d. "Ethanol." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
Acetone · NIST CAS lookup ↗
  1. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. https://doi.org/10.1002/9783527632220. [link ↗]
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  3. Rumble, John R., ed. 2023. CRC Handbook of Chemistry and Physics. 104th ed. Boca Raton, FL: CRC Press. [link ↗]
  4. Smallwood, Ian M. 1996. Handbook of Organic Solvent Properties. London: Arnold. [link ↗]
  5. IFA. n.d. "Acetone." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
DCM · NIST CAS lookup ↗
  1. National Institute of Standards and Technology. n.d. "Methane, dichloro- (CAS 75-09-2)." NIST Chemistry WebBook, SRD 69. Accessed April 25, 2026. [link ↗]
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  3. International Agency for Research on Cancer. 1999. "Dichloromethane." IARC Monographs on the Evaluation of Carcinogenic Risks to Humans 71: 251–315. [link ↗]
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. [link ↗]
  5. IFA. n.d. "Dichloromethane." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
DMSO · NIST CAS lookup ↗
  1. Wypych, George. 2019. Handbook of Solvents. Volume 1: Properties. 3rd ed. Toronto: ChemTec Publishing. https://doi.org/10.1016/C2018-0-02235-3. [link ↗]
  2. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. [link ↗]
  3. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  4. National Institute of Standards and Technology. n.d. "Methane, sulfinylbis- (CAS 67-68-5)." NIST Chemistry WebBook. Accessed April 25, 2026. [link ↗]
  5. IFA. n.d. "Dimethyl sulfoxide." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
THF · NIST CAS lookup ↗
  1. Armarego, Wilfred L. F., and Christina Li Lin Chai. 2009. Purification of Laboratory Chemicals. 6th ed. Oxford: Butterworth-Heinemann. https://doi.org/10.1016/B978-1-85617-567-8.50003-3. [link ↗]
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  3. National Institute of Standards and Technology. n.d. "Furan, tetrahydro- (CAS 109-99-9)." NIST Chemistry WebBook. Accessed April 25, 2026. [link ↗]
  4. Smallwood, Ian M. 1996. Handbook of Organic Solvent Properties. London: Arnold. [link ↗]
  5. IFA. n.d. "Tetrahydrofuran." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
Hexane · NIST CAS lookup ↗
  1. National Institute of Standards and Technology. n.d. "Hexane (CAS 110-54-3)." NIST Chemistry WebBook. Accessed April 25, 2026. [link ↗]
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  3. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Hoboken, NJ: Wiley. [link ↗]
  4. Agency for Toxic Substances and Disease Registry. 1999. Toxicological Profile for n-Hexane. Atlanta, GA: U.S. Department of Health and Human Services. [link ↗]
  5. IFA. n.d. "n-Hexane." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
CHCl3 · NIST CAS lookup ↗
  1. International Agency for Research on Cancer. 1999. "Chloroform." IARC Monographs on the Evaluation of Carcinogenic Risks to Humans 73: 131–182. [link ↗]
  2. National Institute of Standards and Technology. n.d. "Methane, trichloro- (CAS 67-66-3)." NIST Chemistry WebBook. Accessed April 25, 2026. [link ↗]
  3. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. [link ↗]
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. [link ↗]
  5. IFA. n.d. "Chloroform." GESTIS Substance Database. Accessed April 25, 2026. [link ↗]
Théorie de la solubilité (appliquée à la prédiction de la compatibilité) :
  1. Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. Boca Raton, FL: CRC Press. https://doi.org/10.1201/9781420006834 — Triplet HSP (dD, dP, dH) + formule Ra.
  3. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Weinheim: Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solwatochromia.
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Hoboken, NJ: Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
  5. PubChem Compound Database — CAS 77-92-9 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.

Bibliographie complète dans l'accordéon RÉFÉRENCES (en bas de la page) — Chicago Manual of Style 17th ed., Author-Date.

🛡️ Sécurité — CAS 77-92-9MolGod_SAFEHUB_MAIN
Avis sur les limitations des données. Les informations de sécurité figurant sur cette page sont fournies à titre indicatif et ne remplacent pas une fiche de données de sécurité (SDS) complète. Avant d'utiliser le produit, consultez la fiche de données de sécurité actuelle du fabricant ainsi que les directives GHS/CLP. La classification CLP s'applique à la substance pure en vrac, et non aux préparations commerciales.

Classification GHS/CLP — Règlement (CE) n° 1272/2008 + UN GHS Rev. 9 (2021).

⚠ Attention (Warning)
GHS07 — Irritant / nocif
GHS07 Irritant / nocif

🚨 Mentions de danger (H)

  • H335 — Peut irriter les voies respiratoires.
  • H319 — Provoque une sévère irritation des yeux.

🛡 Conseils de prudence (P)

  • P261 — Éviter de respirer les poussières/fumées/gaz/brouillards/vapeurs/aérosols.
  • P264 — Se laver … soigneusement après manipulation.

✓ Classification harmonisée conformément à l'annexe VI du règlement CLP (CE) 1272/2008 (classification officielle, contraignante). Numéro d'index : 607-750-00-3.

Référence (Chicago) : European Chemicals Agency. "citric acid, Index No. 607-750-00-3." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress. Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.

Traductions : Règlement CLP (CE) 1272/2008, Annexe III et IV. Données : PubChem/NLM.

📚 Références scientifiques consolidées — Chicago auteur-date 10 sources

Références collectées dans tous les onglets du Safety Hub. CAS : 77-92-9 · PubChem ↗

  1. Parlament Europejski i Rada UE. 2008. "Rozporządzenie (WE) nr 1272/2008 w sprawie klasyfikacji, oznakowania i pakowania substancji (CLP)." Dz.Urz. UE L 353. [↗] GHS, Réglementations
  2. United Nations Economic Commission for Europe (UNECE). 2021. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Ninth Revised Edition." United Nations, Geneva. [↗] GHS
  3. Goldfrank, Lewis R., Robert S. Hoffman, Mary Ann Howland, et al.. 2019. "Goldfrank's Toxicologic Emergencies, 11th ed.." McGraw-Hill Education, New York. ISBN 978-1-25-985961-8. Pierwsza pomoc, Toksykologia
  4. National Institute for Occupational Safety and Health (NIOSH). 2023. "NIOSH Pocket Guide to Chemical Hazards (DHHS Publ. 2005-149)." U.S. Department of Health and Human Services / CDC, Cincinnati, OH. [↗] Pierwsza pomoc, PPE, Toksykologia
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗] PPE
  6. UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗] Utylizacja, Regulacje
  7. National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗] Magazynowanie
  8. Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗] Magazynowanie
  9. Ministerstwo Klimatu i Środowiska RP. 2023. "Baza danych o produktach i opakowaniach oraz o gospodarce odpadami (BDO)." Ministerstwo Klimatu i Środowiska, Warszawa. [↗] Utylizacja
  10. International Agency for Research on Cancer (IARC / WHO). 2024. "IARC Monographs on the Identification of Carcinogenic Hazards to Humans — List of Classifications." WHO, Lyon. [↗] Toksykologia

Les onglets possédant leurs propres références (Emergency, PPE, Storage, Waste) contiennent des entrées bibliographiques supplémentaires au sein de leurs sections respectives.

📈 Statistiques analytiques (test t · RSD · Grubbs · Q-Dixon) ICH Q2

Collez une série de mesures répétées (CSV ou un nombre par ligne). Le calculateur calculera la moyenne, l'écart-type, l'IC à 95 %, et détectera les valeurs aberrantes (Grubbs + Dixon Q).

Séparateur : virgule, espace, tabulation, nouvelle ligne. Min. 3 mesures.
📐 Formules statistiques
  • x̄ = Σxᵢ / n — moyenne arithmétique
  • s² = Σ(xᵢ - x̄)² / (n-1) — variance de l'échantillon
  • s = √s² — écart-type
  • RSD% = (s / x̄) × 100% — écart-type relatif
  • CI₉₅ = x̄ ± t(0.05, n-1) × s / √n — Student's t
  • G = |xᵢ - x̄| / s — test de Grubbs
  • Q = |xsuspect - xnearest| / |xmax - xmin| — Dixon Q-test

Source : ICH Q2(R2) Validation of Analytical Procedures · ICH PDF ↗

🧪 Calculateur de recettes de tampons UNIQUE
Références : Valeurs de pKa issues de Goldberg NIST 81 · CRC Handbook 100th ed. · Stoll & Blanchard 1990 (DOI)

Choisissez un tampon dans la liste de 20 systèmes courants → saisissez le pH cible → vous obtiendrez une recette exacte avec les masses à peser.

Étape 1 : Choisissez un système tampon

📜 Historique des recettes (10 dernières)
🧪 Méthodes HPLC (prêtes à importer) (3)

C18 · analytical · generic-rphplc

Method Summary

Kolumna: C18 150 × 4.6 mm, 5 μm

Runtime: 23 min · Rt: 2 min · λ: 220 nm

Column Selection

Typ: C18 · Wymiary: 150 × 4.6 mm, 5 μm

C18 daje wystarczającą retencję dla związków hydrofilowych

  • Agilent Zorbax Eclipse Plus C18
  • Waters Symmetry C18
  • Phenomenex Luna C18(2)
Mobile Phase

A: Woda + 0.1% kwas fosforowy (pH 2.5, bufor H3PO4)

B: Acetonitryl

🔬 Dostępność + substytuty
ℹ️ Single-CAS Integrity: Les solvants suivants sont des outils analytiques (phase mobile HPLC) — NE sont PAS la substance analysée. Les valeurs affichées dans les autres accordéons (MW, GHS, toxicologie) se rapportent à la molécule actuelle, pas à ces solvants. Exception : Single-CAS Integrity (catégorie « solvants/tampons/méthodes analytiques »).
PhaseSolvant / CASStatutAction
AWoda + 0.1% kwas fosforowy
CAS 7732-18-5
vérification…
BAcetonitryl
CAS 75-05-8
vérification…
Gradient Program
Time (min)% BFlow
0.005.01.00
2.005.01.00
15.0050.01.00
17.0050.01.00
18.005.01.00
23.005.01.00
Detection Settings

λ primary: 220 nm · reference: 320 nm · bandwidth: 4 nm

Validation Parameters

QC: Resolution ≥2.0 · Tailing ≤1.5 · RSD ≤2%

Uwagi:

  • Predykowany Rt < 3 min — rozważ wolniejszy gradient

Referencje:

  • USP <621> Chromatography
  • ICH Q2(R1) Validation of Analytical Procedures: Text and Methodology
  • Snyder LR, Kirkland JJ, Dolan JW (2010). Introduction to Modern Liquid Chromatography, 3rd ed.
  • Avdeef A. (2012). Absorption and Drug Development: Solubility, Permeability, and Charge State, 2nd ed. Wiley.
Download Method

C18 · analytical · generic-rphplc

Method Summary

Kolumna: C18 150 × 4.6 mm, 5 μm

Runtime: 23 min · Rt: 2 min · λ: 220 nm

Column Selection

Typ: C18 · Wymiary: 150 × 4.6 mm, 5 μm

C18 daje wystarczającą retencję dla związków hydrofilowych

  • Agilent Zorbax Eclipse Plus C18
  • Waters Symmetry C18
  • Phenomenex Luna C18(2)
Mobile Phase

A: Woda + 0.1% kwas fosforowy (pH 2.5, bufor H3PO4)

B: Acetonitryl

🔬 Dostępność + substytuty
ℹ️ Single-CAS Integrity: Les solvants suivants sont des outils analytiques (phase mobile HPLC) — NE sont PAS la substance analysée. Les valeurs affichées dans les autres accordéons (MW, GHS, toxicologie) se rapportent à la molécule actuelle, pas à ces solvants. Exception : Single-CAS Integrity (catégorie « solvants/tampons/méthodes analytiques »).
PhaseSolvant / CASStatutAction
AWoda + 0.1% kwas fosforowy
CAS 7732-18-5
vérification…
BAcetonitryl
CAS 75-05-8
vérification…
Gradient Program
Time (min)% BFlow
0.005.01.00
2.005.01.00
15.0050.01.00
17.0050.01.00
18.005.01.00
23.005.01.00
Detection Settings

λ primary: 220 nm · reference: 320 nm · bandwidth: 4 nm

Validation Parameters

QC: Resolution ≥2.0 · Tailing ≤1.5 · RSD ≤2%

Uwagi:

  • Predykowany Rt < 3 min — rozważ wolniejszy gradient

Referencje:

  • USP <621> Chromatography
  • ICH Q2(R1) Validation of Analytical Procedures
  • Snyder LR, Kirkland JJ, Dolan JW (2010). Introduction to Modern Liquid Chromatography, 3rd ed.
Download Method

C18 · purity · agilent

Method Summary

Kolumna: C18 150 × 4.6 mm, 5 μm

Runtime: 23 min · Rt: 2 min · λ: 210 nm

Column Selection

Typ: C18 · Wymiary: 150 × 4.6 mm, 5 μm

C18 daje wystarczającą retencję dla związków hydrofilowych

  • Agilent Zorbax Eclipse Plus C18
  • Waters Symmetry C18
  • Phenomenex Luna C18(2)
Mobile Phase

A: Woda + 10mM bufor wodorowęglanu amonu (pH 7, bufor NH4HCO3)

B: Acetonitryl

🔬 Dostępność + substytuty
ℹ️ Single-CAS Integrity: Les solvants suivants sont des outils analytiques (phase mobile HPLC) — NE sont PAS la substance analysée. Les valeurs affichées dans les autres accordéons (MW, GHS, toxicologie) se rapportent à la molécule actuelle, pas à ces solvants. Exception : Single-CAS Integrity (catégorie « solvants/tampons/méthodes analytiques »).
PhaseSolvant / CASStatutAction
AWoda + 10mM bufor wodorowęglanu amonu
CAS 7732-18-5
vérification…
BAcetonitryl
CAS 75-05-8
vérification…
Gradient Program
Time (min)% BFlow
0.005.01.00
2.005.01.00
15.0050.01.00
17.0050.01.00
18.005.01.00
23.005.01.00
Detection Settings

λ primary: 210 nm · reference: 310 nm · bandwidth: 4 nm

Validation Parameters

QC: Resolution ≥2.0 · Tailing ≤1.5 · RSD ≤2%

Uwagi:

  • Predykowany Rt < 3 min — rozważ wolniejszy gradient

Referencje:

  • USP <621> Chromatography
  • ICH Q2(R1) Validation of Analytical Procedures
  • Snyder LR, Kirkland JJ, Dolan JW (2010). Introduction to Modern Liquid Chromatography, 3rd ed.
Download Method
🔬 Méthodes HPLC/GC (3 metod)
📄
Putative Identification of 47 Compounds from Jieyu Anshen Granule and Proposal of Pharmacopeia Quality‐Assessment Strategy Using TCM‐Specific Library with UHPLC‐Q‐Exactive‐Orbitrap‐MS
UHPLCChemistryOpen202488% ✓OAResearch method (specificity, robustness)
Colonne : C18, 0.45 μm
Phase : mobile phase however consisted of mobile phase A (water, 0
Détection : MS/MS
Débit : 0.40 mL/min
Temp. : 40.0 °C
Gradient: elution procedure could be described as the following: 0
Li X, Zeng J, Cai R, Li C, Chen X, Chen B, et al. Putative Identification of 47 Compounds from Jieyu Anshen Granule and Proposal of Pharmacopeia Quality‐Assessment Strategy Using TCM‐Specific Library with UHPLC‐Q‐Exactive‐Orbitrap‐MS. ChemistryOpen. 2024;14:e202400046. doi:10.1002/open.202400046
Abstract Jieyu Anshen Granule is a traditional Chinese medicine prescription used for depression and primarily comprises five herbal medicines: Zhizi, Chaihu, Zhigancao, Danggui, and Yuanzhi. This study established a traditional Chinese herbal medicine‐specific library using emerging ultra‐high‐performance liquid chromatography‐quadrupole‐orbitrap‐tandem mass spectrometry analysis. Through library comparison, the study has fulfilled isomers distinction. As a result, 47 compounds were simultaneously and putatively identified from Jieyu Anshen Granule, including 12 unexpected compounds and 35 expected compounds. The unexpected compounds comprised cyclocommunol, 5‐hydroxyflavone, tangeretin, 3,5,6,7,8,3’,4’‐heptemethoxyflavone, calycosin‐7‐O‐β‐D‐glucoside, 7,4’‐dihydroxyflavone, naringenin‐7‐O‐β‐D‐glucoside, matrine, betaine, jervine, alantolactone, and hypericin. Among the 35 expected compounds, saikosaponin A, saikosaponin D, glycyrrhizic acid, geniposide, ligustilide, and polygalaxanthone III were further investigated using a quantum chemistry approach. Based on these, an effective quality assessment strategy is proposed for the Pharmacopeia, involving the simultaneous analysis of glycyrrhizic acid, geniposide, ligustilide, polygalaxanthone III, saikosaponins A and D through ultra‐high‐performance liquid chromatography‐quadrupole‐orbitrap‐tandem mass spectrometry analysis. This strategy enables the detection of adulteration in relation to Zhizi, Chaihu, Zhigancao, Danggui, and Yuanzhi in Jieyu Anshen Granule. The findings of unexpected compounds will deepen the understanding of chemistry in Jieyu Anshen Granule.
AdulterateChinese medicineGlycyrrhizic acidSaikosaponin ASaikosaponin DUPLC−Q- Orbitrap-MS/MS
📄
Global metabolic profile and multiple phytometabolites in the different varieties of Gastrodia elata Blume
HPLCFrontiers in Plant Science202390% ✓CC-BYResearch method (specificity, robustness)
Colonne : C18, 1.9 μm
Phase : Mobile phase A and B were 0
Détection : UV 220 nm
Débit : 0.35 mL/min
Temp. : 80.0 °C
Inj.: 800 μL
Gradient: , 95% A (0 min–2 min), 95%–5% A (2 min–22…
Zeng X, Li J, Chen T, Li Y, Guo S. Global metabolic profile and multiple phytometabolites in the different varieties of Gastrodia elata Blume. Frontiers in Plant Science. 2023;14:1249456. doi:10.3389/fpls.2023.1249456
Gastrodia elata Blume (Tianma in Chinese), a myco-heterotrophic orchid, is widely distributed in China. Tubers derived from this orchid are traditionally used as both medicinal and edible materials. At present, five primary varieties of G. elata are recorded in the “Flora of China.” Among them, the three main varieties currently in artificial cultivation are G. elata f. elata (GR, red stem), G. elata f. glauca (GB, black stem), and G. elata f. viridis (GG, green stem). In our study, the metabolic profiles and chemical composition of these three varieties were determined via UPLC-MS/MS and HPLC-UV. In total, 11,132 metabolites were detected, from which multiple phytometabolites were identified as aromatic compounds, heteroatomic compounds, furans, carbohydrates, organic acids, and their derivatives. A number of differentially expressed metabolites (DEMs) were annotated as bioactive ingredients. Overall, parishins, vanilloloside, and gastrodin A/B in the GB group were markedly higher, whereas gastrodin, gastrol, and syringic acid were more enriched in the GG or GR groups. Moreover, HPLC fingerprint analysis also found six metabolites used as markers for the identification of Gastrodiae Rhizoma in the Chinese Pharmacopoeia, which were also typical DEMs in metabolomics. Of these, gastrodin, 4-hydroxybenzyl alcohol, citric acid, and adenosine were quantitatively detected, showing a similar result with the metabolomic data. In summary, our findings provide novel insights into the phytochemical ingredients of different G. elata varieties, highlighting diverse biological activities and healthcare value.
varietyphytometabolitearomatic compoundsHPLC fingerprints
📄
Evidence for the Hydration of Some Organic Compounds during Reverse-Phase HPLC Analysis
HPLCMolecules202390% ✓CC-BYResearch method (specificity, robustness)
Colonne : C18, 2.7 μm
Phase : mobile phases in several isocratic modes with 5% concentration steps of the…
Détection : UV 340 nm
Débit : 0.40 mL/min
Temp. : 40.0 °C
Inj.: 5 μL
Gradient: grade, PanReac, Spain), and methanol (analytical grade, Kriokhrom, St
Zenkevich I, Derouiche A, Nikitina D. Evidence for the Hydration of Some Organic Compounds during Reverse-Phase HPLC Analysis. Molecules. 2023;28:734. doi:10.3390/molecules28020734
Some polar analytes (X) can reversibly form hydrates in water-containing eluents under the conditions of reversed-phase HPLC analysis, X + H2O ⇄ X × H2O. One of the methods to detect their formation is the recurrent approximation of the net retention times of such analytes, tR(C + ΔC) = atR(C) + b, where ΔC = const is the constant step in the variation of the organic modifier content of an eluent. These dependencies are linear if hydrates are not formed, but in the case of hydrate formation, they deviate from linearity under high water content. It has been shown that UV spectroscopic parameters, namely, relative optical densities: Arel = A(λ1)/A(λ2), depend on eluent composition for some organic compounds, but their variations cannot be used as indicators for hydrate formation. The coefficients that characterize the dependence of the analyte retention indices on the organic component concentration of an eluent, dRI/dC, appeared to be the most informative additional criterion for hydration. The values of these coefficients for most polar analytes are largely negative (dRI/dC < 0), whereas, for nonpolar compounds, they are largely positive (dRI/dC > 0).
reverse-phase HPLChydration of analytesrecurrent approximation of retention timesretention indicesdependence of indices on the concentration of an organic modifier in an eluent
📈 Validation de la méthode (ICH Q2)

Aucune donnée de validation. Contactez l'auteur de la méthode.

Paramètres selon : ICH Q2(R2) ↗

📋 Comparaison des méthodes
Technique Colonne Temps d'analyse Détection Phase mobile Source
UHPLC C18 — MS/MS mobile phase however consisted of mobile phase A… DOI ↗
HPLC C18 — UV 220 nm Mobile phase A and B were 0 DOI ↗
HPLC C18 — UV 340 nm mobile phases in several isocratic modes with 5%… DOI ↗
🔧 Dépannage HPLC/GC
Pics larges / traînée
Causes : Colonne usée, mauvais pH de la phase, surcharge de la colonne, volume mort
Solution : Remplacer la colonne, vérifier le pH du tampon (±0.2), réduire le volume d'injection, vérifier les raccords
Dérive de la ligne de base
Causes : Phase mobile contaminée, gradient, température instable
Solution : Dégazer la phase, filtrer à 0.22 µm, stabiliser la température de la colonne, rincer le système
Aucun pic
Causes : Mauvaise longueur d'onde, la substance n'élue pas, décomposition thermique, mauvaise phase
Solution : Vérifiez λmax, allongez le gradient, abaissez la température, changez la phase mobile
Pics fantômes (ghost peaks)
Causes : Contamination du système, effet mémoire (carry-over), flacons contaminés
Solution : Nettoyer le système (MeOH/H₂O), utiliser des flacons neufs, injecter un blanc
Faible récupération
Causes : Adsorption sur les parois, extraction insuffisante, décomposition
Solution : Ajoutez un IS, silanisez la verrerie, optimisez l'extraction, vérifiez la stabilité

Sources : Snyder, Kirkland & Dolan ↗, Waters ↗

📊 Validation de la méthode HPLC (ICH Q2(R1)) PARTIAL

3 metrics need experimental data

Paramètre Valeur Unité Critère ICH Q2 Status
Linéarité (R²) aucune donnée unitless R² ≥ 0.999 (≥0.99 pour la bioanalytique) —
LOD (S/N = 3:1) aucune donnée ng/mL S/N ≥ 3:1 (concentration détectable la plus basse) —
LOQ (S/N = 10:1) aucune donnée ng/mL S/N ≥ 10:1 (LOQ ≥ 3×LOD typiquement) —
Précision (RSD intraday, n=6) aucune donnée % RSD RSD ≤ 2% (intraday) / ≤ 3% (interday) pour l'API —
Justesse (récupération, 3 niveaux) aucune donnée % (target 100±2%) Recovery 98-102% (target 100%) —
Plage de linéarité aucune donnée p. ex. 0.1-100 ng/mL Min. 80-120% de la concentration nominale —
Sélectivité/Spécificité aucune donnée qualitative Aucune interférence — pic d'analyte entièrement résolu (Rs ≥ 2.0) —
Robustesse (robustness) aucune donnée RSD < 2% à ±5% de variation RSD < 2% avec de petites variations de paramètres —
Légende : ✓ PASS ⚠ CAUTION ✗ FAIL — NO_DATA
📚 Références scientifiques (Chicago Author-Date) — cliquez pour développer

Normes de validation des méthodes analytiques — 4 sources indépendantes (ICH + USP + AOAC + Snyder).

  1. International Conference on Harmonisation (ICH). 2005. Validation of Analytical Procedures: Text and Methodology Q2(R1). ICH Expert Working Group. [link ↗] — Gold-standard ICH guideline — accepted by EMA, FDA, MHLW, NMPA
  2. United States Pharmacopeia (USP) Convention. 2024. USP General Chapter <621> Chromatography. USP-NF 2024 ed. USP. [link ↗]
  3. AOAC International. 2016. Appendix F: Guidelines for Standard Method Performance Requirements. AOAC INTERNATIONAL. [link ↗] — AOAC SMPR — alternative to ICH Q2 for food/dietary supplements
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. John Wiley & Sons. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗] — Industry standard textbook — Chapter 11 covers method validation
  5. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. Practical HPLC Method Development. 2nd ed. Wiley. ISBN 978-0-471-00703-6. — Classic method-development reference (DryLab heritage).
  6. Rozet, Eric, et al.. 2013. Analysis of recent pharmaceutical regulatory documents on analytical method validation. https://doi.org/10.1016/j.chroma.2007.03.111 [link ↗] — Comparison of FDA / EMA / ICH validation expectations — used for ICH Q2(R1) interpretation.
  7. Heyden, Yvan Vander, et al.. 2009. Robustness of pharmaceutical liquid chromatographic methods. https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗] — Plackett-Burman design for robustness — basis of ICH Q2 §3.7.
  8. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗] — Modern (UHPLC) update of validation chapter — practical RSD/LOD examples.
  9. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. 5th ed. Wiley. ISBN 978-0-470-68218-0. — European pharmacopeial perspective — complements USP/AOAC.
  10. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. HPLC for Pharmaceutical Scientists. Wiley-Interscience. ISBN 978-0-471-68162-4. https://doi.org/10.1002/9780470087954 [link ↗] — Pharma-focused validation case studies (specificity, robustness).
  11. European Medicines Agency (EMA). 2011. Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009. EMA Committee for Medicinal Products for Human Use. [link ↗] — EMA bioanalytical companion to ICH Q2(R1) for clinical samples.

· ⚠ Avertissements réglementaires SVHC/REACH ↑

🔧 Dépannage HPLC — arbre de décision 6 problèmes courants

Diagnostic des 12 problèmes HPLC les plus courants avec un arbre de décision (5 étapes par problème). Source : Snyder/Kirkland/Dolan 3rd ed. Chapter 17 + LCGC LC Troubleshooting columns 1989-2024.

Pics élargis (broad peaks) medium

Symptôme : Tous les pics du chromatogramme sont plus larges que prévu (FWHM > 2× la normale)

🔍 Arbre diagnostique :
  1. 1. Vérifiez si tous les pics sont élargis ou seulement certains
    → OUI : Tous → problème instrumental (colonne ou système)
    → NON : Seulement certains → problème de chimie (interaction avec la colonne pour des analytes spécifiques)
  2. 2. Remplacez par une colonne de test — le problème disparaît-il ?
    → OUI : COLONNE usée — garnissage endommagé, void dans les premiers mm. Remplacez-la.
    → NON : Problème dans le système LC
  3. 3. Vérifiez le volume mort (dead volume) — boucle d'injection, connexions, détecteur
    → OUI : Boucle > 100 µL pour une colonne de 4.6 mm ou connexions desserrées → remplacez les ferrules, raccourcissez les tubes
    → NON : Continuer le diagnostic
  4. 4. Test de température : augmentez la colonne de 25°C à 40°C
    → OUI : Pics plus étroits → cinétique de transfert de masse trop lente (augmentez T)
    → NON : Continue
  5. 5. Vérifiez le débit par rapport à l'optimum de van Deemter pour cette colonne
    → OUI : Optimum pour 4.6mm/5µm = 1.0 mL/min, pour 2.1mm/3µm = 0.4 mL/min
    → NON : Continue
⚠️ Causes courantes :
  • Colonne usée (>2000 injections sans précolonne)
  • Volume mort du système > 100 µL (mauvaise boucle, tubes longs, ferrules desserrées)
  • Température trop basse (cinétique de transfert de masse)
  • Débit hors de l'optimum de van Deemter
  • Solvant d'échantillon plus fort que la phase A
✓ Solutions :
  • ✓ Remplacez la colonne (si >2000 injections)
  • ✓ Vérifiez toutes les connexions — tubes aussi courts que possible
  • ✓ Augmentez la T de la colonne à 40°C (si la substance est stable)
  • ✓ Réduisez le débit à l'optimum de van Deemter
  • ✓ Dissolvez l'échantillon dans la phase A (pas dans un solvant organique pur)
Traînée des pics (tailing, T > 1.5) high

Symptôme : Les pics présentent une "traînée" allongée du côté de l'élution tardive (asymétrie T = b/a > 1.5 selon l'USP)

🔍 Arbre diagnostique :
  1. 1. La substance contient-elle des groupes basiques (amino, pyridine) ?
    → OUI : Oui → interactions silanol ! Ajoutez 0.1% de TFA ou 5-10 mM de TEA à la phase A.
    → NON : Continue
  2. 2. Vérifiez le pH de la phase mobile par rapport au pKa de la substance
    → OUI : pH = pKa ± 1 → ionisation partielle, peak split. Placez le pH à ≥ 2 unités du pKa.
    → NON : Continue
  3. 3. Vérifiez l'âge de la colonne (>1500 injections ?)
    → OUI : Oui → silanols exposés (column bleed). Remplacez par une colonne à endcapping supérieur (XTerra, Symmetry).
    → NON : Continue
  4. 4. L'échantillon contient-il des métaux (Fe, Cu provenant des flacons en verre) ?
    → OUI : Oui → utilisez des flacons incolores de type II ou en PFA. EDTA 0.1mM dans l'échantillon.
    → NON : Continue
⚠️ Causes courantes :
  • Interactions silanol (analyte basique + silanols libres du gel de silice)
  • pH à la limite du pKa de l'analyte (peak split)
  • Colonne ancienne (column bleed, activité silanol élevée)
  • Métaux dans l'échantillon (chélation → traînée)
  • Surcharge de la colonne (>50 µg sur une colonne de 4.6mm)
✓ Solutions :
  • ✓ Ajoutez 0.1% de TFA (UV) ou 0.1% d'acide formique (LC-MS) à la phase A
  • ✓ Choisissez une colonne à endcapping haute pureté : Waters XBridge BEH, Phenomenex Kinetex
  • ✓ Travaillez à un pH ≥ 2 unités du pKa
  • ✓ EDTA 0.1mM dans l'échantillon (chélation Fe/Cu)
  • ✓ Réduisez le volume d'injection à ≤ 20 µL pour une colonne de 4.6mm
Dérive de la ligne de base (baseline drift) medium

Symptôme : La ligne de base monte ou descend systématiquement pendant >5 minutes

🔍 Arbre diagnostique :
  1. 1. Utilisez-vous un gradient (B% augmente) ?
    → OUI : Oui → absorption différente des phases A vs B à dλ. Changement de solvant dans la coupure UV. Vérifiez l'absorbance UV du % d'organique.
    → NON : Continuer (isocratique)
  2. 2. Vérifiez la température de la colonne — est-elle stable à ±0.5°C ?
    → OUI : Oui (stable) → continuer
    → NON : Instable → activez le thermostat de colonne (>25°C contrôlé)
  3. 3. Test : coupez l'échantillonneur automatique, faites fonctionner seuls pompe+colonne+détecteur
    → OUI : La dérive disparaît → contamination de l'échantillonneur automatique (nettoyage de l'aiguille, septum)
    → NON : Continue
  4. 4. Vérifiez l'âge de la lampe (D2 pour UV)
    → OUI : Oui (>1500 heures) → remplacez la lampe
    → NON : Continue
⚠️ Causes courantes :
  • Élution en gradient avec coupure UV différente des phases
  • T de colonne instable
  • Contamination de l'aiguille/septum de l'échantillonneur automatique
  • Lampe UV ancienne (>1500h)
  • Cellule à circulation du détecteur encrassée
  • Colonne non équilibrée (<10 volumes de colonne)
✓ Solutions :
  • ✓ Pré-équilibrez la colonne sur 10-15 volumes de colonne à 100% A
  • ✓ Thermostat de colonne activé, T 30-40°C stable
  • ✓ Nettoyez la cellule à circulation du détecteur avec une solution 50:50 ACN:H2O
  • ✓ Remplacez la lampe D2 si >1500h
  • ✓ Utilisez la soustraction de ligne de base (Chromeleon, fonction native d'Empower)
Absence de pic / pic perdu (no peak) critical

Symptôme : Le pic d'analyte attendu n'apparaît pas sur le chromatogramme

🔍 Arbre diagnostique :
  1. 1. L'injection a-t-elle réellement eu lieu ?
    → OUI : Vérifiez le journal du passeur d'échantillons, la pression des pompes (elle devrait chuter lors de l'injection)
    → NON : Problème de passeur d'échantillons → vérifiez la boucle, l'aiguille, l'échantillon dans le flacon
  2. 2. L'échantillon est-il dans le flacon (volume correct, non évaporé) ?
    → OUI : Continue
    → NON : Pas d'échantillon — repipetez
  3. 3. Stabilité de l'échantillon — préparé il y a >24h ?
    → OUI : Oui → dégradation. Préparez un nouvel échantillon frais.
    → NON : Continue
  4. 4. Vérifiez la longueur d'onde de détection par rapport au λmax de la substance
    → OUI : La détection à λ ne correspond PAS au λmax → pas de signal. Scannez le DAD 200-400nm.
    → NON : Continue
  5. 5. Test : injectez un étalon pur (de concentration connue, frais)
    → OUI : L'étalon donne un pic → problème avec l'échantillon (matrice, dérivatisation)
    → NON : Pas de pic même avec l'étalon → problème du système (colonne, phase, gradient)
⚠️ Causes courantes :
  • Échantillon non prélevé du flacon (bug du passeur d'échantillons)
  • Échantillon dégradé (>24h pH/temp/lumière)
  • Détection à la mauvaise longueur d'onde
  • Phase mobile incorrecte (p. ex. TFA oublié)
  • Colonne inversée / phase stationnaire incorrecte
  • La substance est éluée au front (V0) → non retenue, non visible
✓ Solutions :
  • ✓ Préparez un nouvel échantillon frais selon le protocole exact
  • ✓ Scan UV-Vis DAD 200-400nm + recherche du λmax
  • ✓ Vérifiez la composition de la phase mobile — le TFA a-t-il été ajouté ?
  • ✓ Testez le sens inverse de la colonne (prudemment !)
  • ✓ Pour une rétention <1 min — abaissez le % B, MeOH au lieu d'ACN
  • ✓ Vérifiez la table "expected_rt" dans wp_molgod_hplc_methods
Pression trop élevée (pressure too high) critical

Symptôme : Pression des pompes > 80% du maximum de la colonne ou arrêt du système avec une erreur de haute pression

🔍 Arbre diagnostique :
  1. 1. Vérifiez que la colonne est raccordée correctement (sens de la flèche)
    → OUI : OK
    → NON : Colonne inversée → retournez-la (ne jamais l'utiliser "à l'envers")
  2. 2. Test : retirez la colonne du système, faites tourner la pompe+le détecteur seuls
    → OUI : La pression chute à <50 bar → problème dans la colonne (bouchée)
    → NON : La pression reste élevée → filtre en ligne bouché, fritte encrassée
  3. 3. Vérifiez le filtre de pré-colonne (fritte en ligne)
    → OUI : Encrassé et brun → remplacez-le
    → NON : Continue
  4. 4. Rincez la colonne à contre-courant avec 50:50 ACN:H2O sans la colonne — cela disparaît-il ?
    → OUI : Particules coincées dans le premier mm — un rinçage de 30 min peut la récupérer
    → NON : Remplacez la colonne
⚠️ Causes courantes :
  • Filtre en ligne (fritte) bouché par des particules
  • Relargage du tampon (précipitation à un % B élevé)
  • L'échantillon contient des matières en suspension (filtrer à 0.22 µm avant l'injection)
  • Colonne bouchée (column bed compaction)
  • Gradient avec phase tampon + beaucoup d'organique → précipitation de sel
✓ Solutions :
  • ✓ Filtrez TOUJOURS l'échantillon à 0.22 µm PVDF avant l'injection
  • ✓ Remplacez le filtre en ligne toutes les 100 injections (ou lorsque la pression augmente de >20%)
  • ✓ N'utilisez PAS >20mM de tampon phosphate + >70% d'ACN (le sel précipite)
  • ✓ Rincez la colonne 30 min avec 50:50 ACN:H2O en sens inverse (lorsque le fabricant l'autorise)
  • ✓ Pré-colonne 4×3mm pour protéger la colonne principale
Pics fantômes (ghost peaks) high

Symptôme : Pics inexpliqués sur le chromatogramme, absents de la calibration

🔍 Arbre diagnostique :
  1. 1. Test : injection à blanc (solvant pur de l'échantillon)
    → OUI : Un pic fantôme apparaît → contamination du système ou des éluants
    → NON : Apparaît uniquement avec l'échantillon → matrice
  2. 2. Le pic fantôme croît-il avec le gradient (élue à % B élevé) ?
    → OUI : Oui → colonne surchargée ou composé fortement retenu d'un cycle précédent
    → NON : Indépendant du gradient → effet mémoire (carryover) du passeur d'échantillons
  3. 3. Increase carryover wash (between injections)
    → OUI : Cela aide → l'effet mémoire (carryover) était en cause. Protocole de lavage plus puissant.
    → NON : Continue
  4. 4. Injection d'eau pure — y a-t-il un pic ?
    → OUI : Oui → contamination de la source d'eau (organiques provenant du système DI)
    → NON : Continue
⚠️ Causes courantes :
  • Effet mémoire (carryover) dans l'aiguille/la boucle du passeur d'échantillons
  • Contamination de l'éluant (même de qualité HPLC)
  • Composants fortement retenus de cycles précédents
  • Plastique dans les flacons (phtalates, PEG des capuchons)
  • Eau DI insuffisamment purifiée
✓ Solutions :
  • ✓ Renforcez le protocole de lavage : 100% B → 100% A → 50:50 (3 cycles)
  • ✓ Lavage puissant : DMSO 100% ou MeOH 100% avant la calibration
  • ✓ Filtrez les éluants à 0.22 µm PTFE en cas de doute
  • ✓ Utilisez du verre ambré + des capuchons à revêtement Téflon pour les échantillons
  • ✓ Rampe de gradient périodique jusqu'à 100% B pendant 10 min (nettoyage)
📚 Références scientifiques (Chicago Author-Date) — cliquez pour développer
  1. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. John Wiley & Sons. Chapter 17 (Troubleshooting) pp. 559-616. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗]
  2. Dolan, John W.. 2014. LC Troubleshooting (monthly column 1989-2024). LCGC North America. [link ↗] — John Dolan 35-letnia seria miesięcznych artykułów problemowych
  3. Kromidas, Stavros. 2017. HPLC Made to Measure: A Practical Handbook for Optimization. 2nd ed. Wiley-VCH. ISBN 978-3-527-31377-1. — Praktyczny przewodnik problem-solving dla labs analitycznych
  4. Dolan, John W.. 2013. When to Modify Method Conditions. 192-199. [link ↗] — Decision flow for changing flow rate / temperature / %B vs swapping columns.
  5. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗] — Chapter 9 covers troubleshooting modern UHPLC systems (sub-2 µm particles).
  6. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. 5th ed. Wiley. ISBN 978-0-470-68218-0. — Solid step-by-step problem isolation chapter (eluents, columns, instruments).
  7. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. Practical HPLC Method Development. 2nd ed. Wiley. ISBN 978-0-471-00703-6. — Method-development companion volume with troubleshooting cross-refs.
  8. Carr, Peter W.. 2009. The new physical chemistry of HPLC. 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗] — Theoretical basis for diagnosing efficiency losses (mass-transfer, eddy diffusion).
  9. Heyden, Yvan Vander, et al.. 2009. Robustness of pharmaceutical liquid chromatographic methods. 2120-2129. https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗] — How to diagnose method failures vs. system failures (Plackett-Burman).
  10. Engelhardt, Heinz. 2014. 100 Years of Chromatography. 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5. — Historical context for ghost-peak phenomenology (silica chemistry).
  11. Stoll, Dwight R., and Peter W. Carr. 2017. Two-Dimensional Liquid Chromatography: A State of the Art Tutorial. 519-531. https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. The new physical chemistry of HPLC. 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations. 1167-1182. https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. 100 Years of Chromatography. 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. Probabilistic approach to peak deconvolution in chromatography. 8525-8531. https://doi.org/10.1021/ac101742z [link ↗]
🧪 Solubilité et compatibilité avec les solvants MolGod_SOLUB_1
Molécule
Citric Acid
Formule
C6H8O7
logP
-1.70
Masse (g/mol)
192.12
Polarité
Hydrophile (polaire)

⚠️ Estimation HSP (littérature / contribution de groupes). Données indicatives — ne remplacent pas les études expérimentales.

Solvant Compat. Ra Visuel GC-MS HPLC Applications Références
Water (H₂O)~ Moy.16.5
✗ NieA (aqueous) (RP)
tamponculture cellulaireanalytiqueextraction (hydrophile)
Ethanol (EtOH)+ Bonne11.0
✗ NieA/B modifier (RP/NP)
extractionspectroscopie (UV-Vis)synthèsemodificateur HPLC
Methanol (MeOH)+ Bonne9.3
✗ NieA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent do 205 nm
Acetone− Faible21.8
✗ NieB modifier (NP)
GC headspacecristallisationdégraissagesynthèse
Acetonitrile (ACN)− Faible23.3
✗ NieB (RP) (RP)
éluant HPLC (référence absolue)LC-MS (wolny cut-off UV 190 nm)analyse des peptides
DMSO~ Moy.17.8
✗ NieN/A (N/A)
NMR (d6-DMSO)biologie cellulaire (cryoconservation)administration de médicamentssynthèse
THF− Faible21.3
✗ NieB (NP) (NP)
GPC/SEC (analyse des polymères)synthèse de Grignardorganométalliques
DCM (CH₂Cl₂)− Faible22.5
✓ TakB (NP) (NP)
extractionNP-HPLCGC-MScristallisation (anti-solvant)
Chloroform (CHCl₃)− Faible24.1
✓ TakN/A (toxic) (N/A)
NMR (CDCl3)extraction des lipides (méthode de Folch)NP-TLC
Hexane− Faible31.5
✓ TakA (NP) (NP)
NP-HPLCextraction des huiles (lipides)GC-MSTLC (NP)
Toluene− Faible28.1
✓ TakB (NP) (NP)
NMR (d8-toluene)synthèseséchage azéotropique Dean-Stark
📚 Références scientifiques pour les solvants (Chicago Author-Date) — cliquez pour développer

11 solvants × 5 sources scientifiques indépendantes (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/Wypych/Armarego/Snyder/GESTIS). 55+ citations complètes ci-dessous.

Water (H₂O)
  1. NIST — NIST Chemistry WebBook — Water (CAS 7732-18-5)
  2. CRC — CRC Handbook of Chemistry and Physics, 104th ed., Sec. 8 (Properties of Water)
  3. IAPWS — IAPWS Release on Static Dielectric Constant of Water
  4. Reichardt 2011 — Solvents and Solvent Effects in Organic Chemistry
  5. GESTIS — GESTIS Substance Database — Water
Ethanol (EtOH)
  1. NIST — NIST Chemistry WebBook — Ethanol (CAS 64-17-5)
  2. CRC — CRC Handbook — Ethanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — Ethanol eluotropic
  4. Smallwood — Handbook of Organic Solvent Properties — Ethanol
  5. GESTIS — GESTIS Substance Database — Ethanol
Methanol (MeOH)
  1. NIST — NIST Chemistry WebBook — Methanol (CAS 67-56-1)
  2. CRC — CRC Handbook — Methanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — MeOH eluotropic, eo=0.95
  4. GESTIS — GESTIS Substance Database — Methanol
Acetone
  1. NIST — NIST Chemistry WebBook — Acetone (CAS 67-64-1)
  2. CRC — CRC Handbook — Acetone physical & thermodynamic constants
  3. Hansen 2007 — Hansen Solubility Parameters — Acetone (dD=15.5, dP=10.4, dH=7.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Acetone
  5. GESTIS — GESTIS Substance Database — Acetone
Acetonitrile (ACN)
  1. NIST — NIST Chemistry WebBook — Acetonitrile (CAS 75-05-8)
  2. CRC — CRC Handbook — Acetonitrile constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — ACN gold-standard HPLC eluent
  4. Reichardt 2011 — Solvents and Solvent Effects — ACN dipolar aprotic
  5. GESTIS — GESTIS Substance Database — Acetonitrile
DMSO
  1. NIST — NIST Chemistry WebBook — DMSO (CAS 67-68-5)
  2. Wypych 2019 — Handbook of Solvents Vol. 1 — DMSO comprehensive properties
  3. Hansen 2007 — HSP — DMSO (dD=18.4, dP=16.4, dH=10.2)
  4. Reichardt 2011 — Solvents and Solvent Effects — DMSO E_T(30)=45.1, dipolar aprotic
  5. GESTIS — GESTIS Substance Database — DMSO
THF
  1. NIST — NIST Chemistry WebBook — THF (CAS 109-99-9)
  2. Armarego 2009 — Purification of Laboratory Chemicals — THF drying & peroxide test
  3. Hansen 2007 — Hansen Solubility Parameters — THF (dD=16.8, dP=5.7, dH=8.0)
  4. Smallwood — Handbook of Organic Solvent Properties — THF
  5. GESTIS — GESTIS Substance Database — Tetrahydrofuran
DCM (CH₂Cl₂)
  1. NIST — NIST Chemistry WebBook — Dichloromethane (CAS 75-09-2)
  2. IARC 71 — IARC Monograph 71 — DCM (Group 2A carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — DCM (dD=18.2, dP=6.3, dH=6.1)
  4. Reichardt 2011 — Solvents and Solvent Effects — DCM polarity index
  5. GESTIS — GESTIS Substance Database — Dichloromethane
Chloroform (CHCl₃)
  1. NIST — NIST Chemistry WebBook — Chloroform (CAS 67-66-3)
  2. IARC 73 — IARC Monograph 73 — Chloroform (Group 2B carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — CHCl3 (dD=17.8, dP=3.1, dH=5.7)
  4. Reichardt 2011 — Solvents and Solvent Effects — CHCl3 H-bond donor strength
  5. GESTIS — GESTIS Substance Database — Chloroform
n-Hexane
  1. NIST — NIST Chemistry WebBook — n-Hexane (CAS 110-54-3)
  2. ATSDR n-Hexane — ATSDR Toxicological Profile for n-Hexane — neuropatia obwodowa (n-Heksan NIE jest kancerogenem IARC)
  3. Hansen 2007 — Hansen Solubility Parameters — n-Hexane (dD=14.9, dP=0, dH=0)
  4. Snyder & Kirkland — Modern Liquid Chromatography — n-Hexane NP standard, eo=0.00
  5. GESTIS — GESTIS Substance Database — n-Hexane
Toluene
  1. NIST — NIST Chemistry WebBook — Toluene (CAS 108-88-3)
  2. IARC 71 — IARC Monograph 71 — Toluene
  3. Hansen 2007 — Hansen Solubility Parameters — Toluene (dD=18.0, dP=1.4, dH=2.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Toluene
  5. GESTIS — GESTIS Substance Database — Toluene
Théorie de la solubilité (appliquée à la prédiction de la compatibilité) :
  1. Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. CRC Press. https://doi.org/10.1201/9781420006834 — Triplet HSP (dD, dP, dH) + formule Ra.
  3. Stefanis, E., and C. Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." Int J Thermophys 29: 568–585. https://doi.org/10.1007/s10765-008-0415-z
  4. Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solwatochromia.
  5. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
  6. Van Krevelen, D. W., and K. Te Nijenhuis. 2009. Properties of Polymers. 4th ed. Elsevier. https://doi.org/10.1016/B978-0-08-054819-7.X0001-5 — Hoftyzer–Van Krevelen group contribution dla dD/dP/dH z SMILES.
  7. Marcus, Yizhak. 1998. The Properties of Solvents. Wiley Series in Solution Chemistry, Vol. 4. ISBN 9780471983699 — Ensemble tabulaire complet de 250+ solvants (ε, μ, donicité, nombres accepteurs).
  8. PubChem Compound Database — CAS 77-92-9 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.

Bibliographie complète dans l'accordéon RÉFÉRENCES (en bas de la page) — Chicago Manual of Style 17th ed., Author-Date.

🧮 Calculateurs de laboratoire (8) MolGod_LABCALC_1
Dilution (C₁V₁=C₂V₂)
Molarité (M=n/V)
Tampon pH (Henderson-Hasselbalch)
Beer-Lambert (A=εcl)
Masse → Moles
Concentration % → M
ppm → mg/L
Température C↔F↔K

Formules vérifiées : IUPAC Gold Book ↗, DOI ↗

📊 Bases de spectres spectroscopiques MolGod_SPECDB_3
📋 Générateur de protocole de laboratoire MolGod_PROTOCOL_1

Protocole généré à partir de : GHS SDS, Aldrich Lab Guide ↗

🏷️ Générateur d'étiquette (QR) MolGod_LABEL_1
Acide citrique• citric acid• CAS: 77-92-9• Formule: C6H8O7• Masse: 192.12 g/molATTENTIONMENTIONS DE DANGER GHS :H319: Provoque une sévère irritation des yeux.P264: Se laver … soigneusement après manipulation.P280: Porter des gants de protection/des vêtements de protection/un équipement deprotection des yeux/du visage.DH ScientificScience first. Commerce as consequence.N° de lot: Masse nette: Fabr.:
ADMET — Profil pharmacologique
Chargement des prédictions ADMET…
🧪 Assistant de préparation de solution (Smart Prep) MolGod_PREP_2

Saisissez ce que vous souhaitez préparer — je générerai un SOP

Exemples ci-dessous — cliquez pour insérer :
Recettes prédéfinies :
📚 Aperçu de la littérature scientifique — CAS 77-92-9MolGod_LITHUB_MAIN
⭐ Principales découvertes (littérature scientifique) 4 publications
🏆 CAS 77-92-9 — multi-criteria ranking (W12): 30% citations · 20% actualité · 20% thème · 15% historique · 15% open access.
  1. #1
    Apelblat, A. (1973) · Journal of the Chemical Society
    Pourquoi c'est important : Citation obligatoire (canon) · 540 citations
    SCORE 10.45 Mécanisme MUST-CITE Citations : 540 DOI ↗
  2. #2
    Vandenberghe, L.P.S.; Soccol, C.R.; Pandey, A.; Lebeault, J.M. (2007) · Brazilian Archives of Biology and Technology
    Pourquoi c'est important : Citation obligatoire (canon) · 520 citations · revue
    SCORE 9.95 Revue MUST-CITE Citations : 520 DOI ↗
  3. #3
    Lambros, M.; Tran, T.H.; Fei, Q.; Nicolaou, M. (2020) · Pharmaceutics
    Pourquoi c'est important : Citation obligatoire (canon) · 140 citations · revue
    SCORE 9.45 Revue MUST-CITE Citations : 140 DOI ↗
  4. #4
    Behera, B.C.; Mishra, R.; Mohapatra, S. (2018) · Food Frontiers
    Pourquoi c'est important : Citation obligatoire (canon) · 160 citations
    SCORE 9.02 Industrie MUST-CITE Citations : 160 DOI ↗

Description

Charakterystyka

  • Wzór chemiczny: C₆H₈O₇·H₂O
  • Numer CAS: 77-92-9
  • Masa molowa: 192,12 g/mol
  • Forma: biały krystaliczny proszek
  • Czystość: spożywcza (czysty min. 99,7%)
  • Inne nazwy: kwasek cytrynowy, kwas 2-hydroksypropanotrójkarboksylowy

Zastosowania

  • Regulator kwasowości w przetworach domowych (dżemy, kompoty)
  • Środek zakwaszający do napojów i deserów
  • Usuwanie kamienia z czajników i ekspresów
  • Konserwant żywności (E330)
  • Domowy peeling enzymatyczny do twarzy

Specyfikacja

Waga netto: 1000g, przechowywać w suchym miejscu w szczelnie zamkniętym opakowaniu. Rozpuszczalny w wodzie (27g/100ml w 25°C).


Najczęściej zadawane pytania

Jak używać kwasu cytrynowego do odkamieniania czajnika?

Rozpuść 2-3 łyżki proszku w 500ml wody, zagotuj mieszaninę w czajniku, pozostaw na 15 minut, dokładnie wypłucz. Unikaj stosowania do aluminium.

Czy kwas cytrynowy jest bezpieczny dla dzieci?

Tak, w małych ilościach (jako E330) jest dopuszczony do żywności. Nie stosować czystego proszku doustnie – może podrażniać błony śluzowe.

Czy wiesz, że kwas cytrynowy naturalnie występuje w cytrusach?

Jak odróżnić kwas cytrynowy spożywczy od technicznego?

Spożywczy ma czystość min. 99,7% i certyfikat HACCP, techniczny może zawierać zanieczyszczenia. Sprawdź oznaczenie na opakowaniu.


Źródła i literatura

  • PubChem — National Library of Medicine: Właściwości fizykochemiczne kwasu cytrynowego (CID [CAS?]). pubchem.ncbi.nlm.nih.gov
  • Rozporządzenie UE 1333/2008: Dopuszczenie E330 jako dodatku do żywności.
  • Karta charakterystyki produktu: Zawiera informacje o bezpiecznym stosowaniu i przechowywaniu.

⚠ UWAGA — ODCZYNNIK CHEMICZNY

Kwas cytrynowy (C6H8O7) powszechnie znana jako kwasek cytrynowy, kwas cytrynowy to odczynnik chemiczny przeznaczony wyłącznie do zastosowań laboratoryjnych, badawczych i profesjonalnych.
Numer CAS: 77-92-9
Numer WE (EC): 201-069-1
Nazwa IUPAC: kwas 2-hydroksypropano-1,2,3-trikarboksylowy
Nazwa łacińska (Farmakopea): Acidum citricum

NIE NADAJE SIĘ DO SPOŻYCIA przez ludzi ani zwierzęta. Produkt nie jest lekiem, suplementem diety, kosmetykiem ani środkiem spożywczym. Jakiekolwiek inne zastosowanie niż laboratoryjne lub przemysłowe jest niezgodne z przeznaczeniem produktu.

Wymagane środki ochrony osobistej: rękawice ochronne, okulary lub gogle, fartuch laboratoryjny, praca w dobrze wentylowanym pomieszczeniu lub pod wyciągiem chemicznym.

Przed użyciem zapoznaj się z kartą charakterystyki substancji (SDS/MSDS) zgodnie z rozporządzeniem REACH (WE) 1907/2006 oraz CLP (WE) 1272/2008. Sprzedaż wyłącznie do celów technicznych.

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📈 Gradient HPLC — optimiseur (LSS) MODÈLE

Gradient basé sur PubChem XLogP3 + LSS (Snyder et al. 2010, chap. 9).

  • Colonne: C18
  • Tampon: phosphate
  • Débit: 1 mL/min
  • logP: -1.7 (PubChem XLogP3)
  • Rampe: 5% → 95% B, 10 min
  • Temps d'analyse total: 23 min
t (min) %A %B flow (mL/min) Commentaire
0 95 5 1 début (équilibre)
2 95 5 1 fin du palier initial
12 5 95 1 fin de la rampe LSS
17 5 95 1 lavage de la colonne
18 95 5 1 retour à init
23 95 5 1 rééquilibrage
📚 Références scientifiques (Chicago Author-Date)
  1. Snyder, Lloyd R., John W. Dolan, and Joseph J. Kirkland. 2010. Introduction to Modern Liquid Chromatography. Wiley. — Chapter 9 — gradient elution, LSS theory (cited as Snyder et al. 2010 in tool description).
  2. Schoenmakers, Peter J. 1986. Optimization of Chromatographic Selectivity: A Guide to Method Development. Elsevier. — Numerical optimization of gradient programs.
  3. Snyder, L. R., and J. W. Dolan. 2007. High-Performance Gradient Elution: The Practical Application of the Linear-Solvent-Strength Model. Wiley. — Foundational LSS reference for the %B_init = 5 + 8·logP heuristic implemented here.
  4. Nikitas, Pavlos, and Adrian Pappa-Louisi. 2009. "Retention models for isocratic and gradient elution in reversed-phase liquid chromatography." Journal of Chromatography A 1216: 1737-1755. [DOI ↗] — Modern review of gradient retention models — basis for non-LSS extensions.
  5. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. [DOI ↗]
  6. Dong, Michael W. 2019. HPLC and UHPLC for Practicing Scientists. Wiley. https://doi.org/10.1002/9781119313793. — Modern UHPLC gradient programming, sub-2 µm scaling rules.
  7. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. [DOI ↗]
  8. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. [DOI ↗] — Reference for orthogonal gradient design (2D-LC second dimension).
  9. Dolan, John W.. 2013. "When to Modify Method Conditions." LCGC North America 31: 192-199.
  10. Meyer, Veronika R. 2010. Practical High-Performance Liquid Chromatography. Wiley. — Chapter 7 — practical gradient design with isokratyczny scouting.
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531. [DOI ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. [DOI ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. [DOI ↗]
  14. Engelhardt, Heinz. 2014. 100 Years of Chromatography. Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531. [DOI ↗]

REST: /wp-json/molgod/v1/hplc/gradient/77-92-9

🌈 Détecteur + longueur d'onde (UV/Vis) 184 nm
Composé1,2,3-Propanetricarboxylic acid, 2-hydroxy-
λmax184 nm
λmin—
εmax (M⁻¹·cm⁻¹)—
Solvant (référence)gas phase or unknown (NIST WebBook)
λ suggérée184 nm
Détecteur recommandéELSD
AlternativesRID, MS, CAD

Source de données: NIST WebBook UVVis JCAMP — peak picked from spectrum

⚠ Compatibilité avec la phase mobile

  • critical λ=184 nm < seuil UV Water (HPLC-grade) (190 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Acetonitrile (190 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Methanol (205 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Ethanol (210 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV n-Hexane (200 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Tetrahydrofuran (THF) (220 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Diethyl ether (218 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Dichloromethane (232 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV Acetic acid (1%) (230 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV 0.1% TFA in water (210 nm) — le solvant absorbe, mesure impossible.
  • critical λ=184 nm < seuil UV 20 mM phosphate pH 7 (200 nm) — le solvant absorbe, mesure impossible.
  • advisory Le travail en dessous de 220 nm exige : des solvants de qualité HPLC, un dégazage de la phase mobile, un tampon propre (éviter TFA/acétate) ainsi qu'une lampe au deutérium en bon état.
📚 Références scientifiques (Chicago Author-Date) 17 refs

METODA Bibliographie de la méthode

  1. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2017. "Principles of Instrumental Analysis." 7th ed. Cengage Learning. ISBN 978-1-305-57721-3.
  2. Perkampus, Heinz-Helmut. 1992. "UV-VIS Spectroscopy and Its Applications." Springer. ISBN 978-3-642-77479-9. →
  3. Sadek, Paul C.. 2002. "The HPLC Solvent Guide." 2nd ed. Wiley-Interscience. ISBN 978-0-471-41138-4.
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." 3rd ed. Wiley. ISBN 978-0-470-16754-0. →
  5. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." 2nd ed. Wiley. ISBN 978-1-119-31378-3. →
  6. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography." 5th ed. Wiley. ISBN 978-0-470-68218-0.
  7. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 →
  8. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 →
  9. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. "HPLC for Pharmaceutical Scientists." Wiley-Interscience. ISBN 978-0-471-68162-4. →
  10. Kim, Sunghwan, et al.. 2023. "PubChem 2023 update." Nucleic Acids Research 51: D1373-D1380 →
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 →
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 →
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182 →
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 →

REST: /wp-json/molgod/v1/hplc/detector/77-92-9

📐 Calculateur de symétrie de pic HPLC (USP Tf / As)

Calculez le facteur de traînée USP (T) et l'asymétrie (As) à partir des demi-largeurs du pic. Saisissez a (demi-largeur gauche) et b (demi-largeur droite) mesurées à 5% ou 10% de la hauteur du pic.

📚 Références (Chicago Author-Date)
  1. USP General Chapter <621>. 2024. "Chromatography." United States Pharmacopeial Convention. [link ↗] — Defines USP Tailing Factor T = (a+b)/(2a) measured at 5% peak height.
  2. International Council for Harmonisation (ICH). 2023. "Validation of Analytical Procedures Q2(R2)." ICH Expert Working Group. [link ↗] — Tailing factor is a system suitability parameter (Section 6).
  3. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." Analytical Chemistry 55: 730-737 https://doi.org/10.1021/ac00255a033 [link ↗] — Original asymmetry factor As = b/a at 10% height (Foley & Dorsey 1983).
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." Wiley. https://doi.org/10.1002/9780470508183 [link ↗] — Chapter 2.4 — peak shape diagnostics and remedies.
  5. Dolan, John W.. 2003. "Peak tailing and resolution." LCGC North America 21: 610-614 [link ↗] — How tailing factor degrades effective resolution.
  6. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗] — Modern numerical deconvolution for asymmetric peaks.
  7. Kromidas, Stavros. 2017. "HPLC Made to Measure: A Practical Handbook for Optimization." Wiley-VCH. — Practical Tf and As thresholds for routine QC.
  8. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." Wiley. https://doi.org/10.1002/9781119313793 [link ↗]
  9. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography." Wiley.
  10. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." Journal of Chromatography B 877: 2120-2129 https://doi.org/10.1016/j.jchromb.2008.10.052 [link ↗]
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182 https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗]
📊 Calculateur de résolution et de nombre de plateaux (Rs, N, H)

Calculez la résolution Rs, le nombre de plateaux théoriques N et la HETP (H) pour une paire de pics HPLC. Saisissez les temps de rétention, les largeurs de pic (à 50% ou à la base) et la longueur de la colonne.

📚 Références (Chicago Author-Date)
  1. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." 3rd ed. John Wiley & Sons. ISBN 978-0-470-16754-0. https://doi.org/10.1002/9780470508183 [link ↗] — Chapter 2 covers resolution, plate count and HETP fundamentals (Snyder et al. 2010).
  2. USP General Chapter <621>. 2024. "Chromatography." USP-NF 2024 ed. United States Pharmacopeial Convention. [link ↗] — Defines Rs >= 1.5 acceptance criterion and N calculation methods.
  3. Dolan, John W.. 2003. "How much resolution is enough?." LCGC North America 21: 350-353 [link ↗] — Practical guidance on Rs targets for routine method development.
  4. Van Deemter, J. J., F. J. Zuiderweg, and A. Klinkenberg. 1956. "Longitudinal diffusion and resistance to mass transfer as causes of nonideality in chromatography." Chemical Engineering Science 5: 271-289 https://doi.org/10.1016/0009-2509(56)80003-1 [link ↗] — Origin of N = 5.54·(tr/w0.5)² half-height plate count formulation.
  5. Giddings, J. Calvin. 1965. "Dynamics of Chromatography, Part I: Principles and Theory." Marcel Dekker. ISBN 978-0-8247-1357-7. — Resolution equation Rs = (1/4)·√N·(α-1)/α·k/(1+k) (master equation).
  6. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." Analytical Chemistry 55: 730-737 https://doi.org/10.1021/ac00255a033 [link ↗] — Skewed-peak corrections to apparent N.
  7. Knox, John H.. 1977. "Practical aspects of LC theory." Journal of Chromatographic Science 15: 352-364 https://doi.org/10.1093/chromsci/15.9.352 [link ↗]
  8. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  9. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." 2nd ed. Wiley. ISBN 978-1-119-31378-3. https://doi.org/10.1002/9781119313793 [link ↗]
  10. Meyer, Veronika R.. 2010. "Practical High-Performance Liquid Chromatography." 5th ed. Wiley. ISBN 978-0-470-68218-0.
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial." Analytical Chemistry 89: 519-531 https://doi.org/10.1021/acs.analchem.6b03506 [link ↗]
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772 https://doi.org/10.1016/j.chroma.2008.11.094 [link ↗]
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182 https://doi.org/10.1002/jssc.200700026 [link ↗]
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." 2nd ed. Wiley-VCH. ISBN 978-3-527-33473-5.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531 https://doi.org/10.1021/ac101742z [link ↗]
🧪 Conformité du système — calculateur en direct (USP <621>)

Saisissez les données de 5-6 injections (aires, tr, traînée, plateaux) — le calculateur calcule le %RSD, les moyennes et vérifie la conformité à l'USP <621>. Vous pouvez coller un CSV (séparé par des virgules) ou modifier des valeurs individuelles.

📚 Références (Chicago Author-Date)
  1. USP General Chapter <621>. 2024. "Chromatography (System Suitability section)." USP-NF 2024 ed. United States Pharmacopeial Convention. [link ↗] — Defines RSD area < 2%, tailing < 2.0, N > 2000 acceptance criteria.
  2. International Council for Harmonisation (ICH). 2023. "Validation of Analytical Procedures Q2(R2)." ICH Expert Working Group. [link ↗] — Section 5.4 — system suitability is part of method validation.
  3. US Food and Drug Administration (FDA). 2018. "Reviewer Guidance: Validation of Chromatographic Methods." US Food and Drug Administration. [link ↗] — CDER reviewer perspective on chromatographic validation expectations.
  4. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." 3rd ed. Wiley. — Chapter 2 — system suitability fundamentals (RSD, Tf, N).
  5. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." — Robustness vs. system suitability — design-of-experiments framework.
  6. Rozet, Eric, et al.. 2013. "Analysis of recent pharmaceutical regulatory documents on analytical method validation."
  7. European Medicines Agency (EMA). 2011. "Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009." EMA. [link ↗] — EMA companion guideline with bioanalytical SS criteria.
  8. Dong, Michael W.. 2019. "HPLC and UHPLC for Practicing Scientists." 2nd ed. Wiley. — UHPLC-specific suitability adjustments (n=5 vs. n=6).
  9. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. "HPLC for Pharmaceutical Scientists." Wiley-Interscience.
  10. AOAC International. 2016. "Appendix F: Guidelines for Standard Method Performance Requirements." AOAC INTERNATIONAL. [link ↗] — Alternative SS thresholds for food/dietary samples.
  11. Stoll, Dwight R., and Peter W. Carr. 2017. "Two-Dimensional Liquid Chromatography: A State of the Art Tutorial."
  12. Carr, Peter W.. 2009. "The new physical chemistry of HPLC."
  13. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations."
  14. Engelhardt, Heinz. 2014. "100 Years of Chromatography." 2nd ed. Wiley-VCH.
  15. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography."
⚗️ Jonizacja w funkcji pH (Henderson-Hasselbalch)MolGod_PHION_1

Typ: Kwas · pKa: 3.13 · pKa2: 4.76

024681012140%50%100%% zjonizowany% niejonowypH
pH% jonowy% niejonowy
00.1 %99.9 %
26.9 %93.1 %
488.1 %11.9 %
699.9 %0.1 %
8100.0 %0.0 %
10100.0 %0.0 %
12100.0 %0.0 %
14100.0 %0.0 %
Źródła dla tej substancji (9)
  • CRC Handbook 91st ed.
    Lide, David R., ed. 2010. CRC Handbook of Chemistry and Physics. 91st ed. Boca Raton, FL: CRC Press.
  • CRC Handbook 105th ed.
    Haynes, William M., David R. Lide, and Thomas J. Bruno, eds. 2024. CRC Handbook of Chemistry and Physics. 105th ed. Boca Raton, FL: CRC Press.
  • NIST WebBook — link
    Linstrom, Peter J., and William G. Mallard, eds. 2024. NIST Chemistry WebBook. NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology.
  • PubChem CID 311 — link
    Kim, Sunghwan, Jie Chen, Tiejun Cheng, Asta Gindulyte, Jia He, Siqian He, Qingliang Li, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380. PubChem CID 311.
  • DrugBank DB04272 — link
    Knox, Craig, Mike Wilson, Christen M. Klinger, Mark Franklin, Eponine Oler, Alex Wilson, Allison Pon, et al. 2024. "DrugBank 6.0: the DrugBank Knowledgebase for 2024." Nucleic Acids Research 52 (D1): D1265-D1275. DrugBank ID DB04272.
  • KEGG COMPOUND C00158 — link
    Kanehisa, Minoru, Miho Furumichi, Yoko Sato, Masayuki Kawashima, and Mari Ishiguro-Watanabe. 2023. "KEGG for taxonomy-based analysis of pathways and genomes." Nucleic Acids Research 51 (D1): D587-D592.
  • IUPAC
    Serjeant, E. P., and Boyd Dempsey. 1979. Ionisation Constants of Organic Acids in Aqueous Solution. IUPAC Chemical Data Series No. 23. Oxford: Pergamon Press.
  • NIST
    Goldberg, Robert N., Nand Kishore, and Rebecca Lennen. 2002. "Thermodynamic Quantities for the Ionization Reactions of Buffers." Journal of Physical and Chemical Reference Data 31 (2): 231-370.
Bibliografia metody (Chicago)
  • Henderson, L. J. 1908. "Concerning the Relationship between the Strength of Acids and Their Capacity to Preserve Neutrality." American Journal of Physiology 21 (4): 173-179.
  • Hasselbalch, K. A. 1917. "Die Berechnung der Wasserstoffzahl des Blutes aus der freien und gebundenen Kohlensäure desselben." Biochemische Zeitschrift 78: 112-144.
  • Po, Henry N., and N. M. Senozan. 2001. "The Henderson-Hasselbalch Equation: Its History and Limitations." Journal of Chemical Education 78 (11): 1499-1503.
  • Avdeef, Alex. 2012. "Absorption and Drug Development: Solubility, Permeability, and Charge State." 2nd ed. Wiley.
  • Avdeef, Alex. 2007. "Solubility of sparingly-soluble ionizable drugs." Advanced Drug Delivery Reviews 59 (7): 568-590.
  • Volgyi, Gergely, et al. 2007. "Potentiometric and spectrophotometric pKa determination of water-insoluble compounds." Analytica Chimica Acta 583 (2): 418-428.
  • Fini, Adamo, Giuseppe Fazio, and Giuseppina Feroci. 1997. "Solubility and solubilization properties of non-steroidal anti-inflammatory drugs." Pharmaceutica Acta Helvetiae 70 (4): 305-318.
  • Mauger, John W., Anthony N. Paruta, and Robert J. Gerraughty. 1972. "Solubilities of sulfadiazine, sulfisomidine, and sulfadimethoxine." Journal of Pharmaceutical Sciences 61 (1): 94-97.
  • Lyman, Warren J., William F. Reehl, and David H. Rosenblatt. 1990. "Handbook of Chemical Property Estimation Methods." American Chemical Society.
  • Marcus, Yizhak. 1998. "The Properties of Solvents." Wiley.
  • Serjeant, E. P., and Boyd Dempsey. 1979. Ionisation Constants of Organic Acids in Aqueous Solution. IUPAC Chemical Data Series No. 23. Oxford: Pergamon Press.
  • Perrin, Douglas D. 1965. Dissociation Constants of Organic Bases in Aqueous Solution. IUPAC. London: Butterworths.
  • Goldberg, Robert N., Nand Kishore, and Rebecca Lennen. 2002. "Thermodynamic Quantities for the Ionization Reactions of Buffers." Journal of Physical and Chemical Reference Data 31 (2): 231-370.
  • Haynes, William M., David R. Lide, and Thomas J. Bruno, eds. 2024. CRC Handbook of Chemistry and Physics. 105th ed. Boca Raton, FL: CRC Press.
  • Lide, David R., ed. 2010. CRC Handbook of Chemistry and Physics. 91st ed. Boca Raton, FL: CRC Press.
  • Kim, Sunghwan, Jie Chen, Tiejun Cheng, Asta Gindulyte, Jia He, Siqian He, Qingliang Li, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380.
  • Knox, Craig, Mike Wilson, Christen M. Klinger, Mark Franklin, Eponine Oler, Alex Wilson, Allison Pon, et al. 2024. "DrugBank 6.0: the DrugBank Knowledgebase for 2024." Nucleic Acids Research 52 (D1): D1265-D1275.
  • Zdrazil, Barbara, Eloy Felix, Fiona Hunter, Emma J. Manners, James Blackshaw, Sybilla Corbett, Marleen de Veij, et al. 2024. "The ChEMBL Database in 2023." Nucleic Acids Research 52 (D1): D1180-D1192.
  • Kanehisa, Minoru, Miho Furumichi, Yoko Sato, Masayuki Kawashima, and Mari Ishiguro-Watanabe. 2023. "KEGG for taxonomy-based analysis of pathways and genomes." Nucleic Acids Research 51 (D1): D587-D592.
  • Linstrom, Peter J., and William G. Mallard, eds. 2024. NIST Chemistry WebBook. NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology.
  • Nelson, David L., and Michael M. Cox. 2017. Lehninger Principles of Biochemistry. 7th ed. New York: W. H. Freeman.
📈 Prédicteur de spectre UV-VIS (200-400 nm) λmax 184 nm MolGod_UVVIS_1
0%25%50%75%100%200250300350400A = ε·c·lA / Aₘₐₓ (%)
Composé1,2,3-Propanetricarboxylic acid, 2-hydroxy-
λmax184 nm
λmin—
εmax (M⁻¹·cm⁻¹)—
Solvant (requête)water
Solvant (référence)gas phase or unknown (NIST WebBook)
Concentration (M)1e-4
Longueur du trajet optique (cm)1
FWHM de la courbe30 nm

Modèle : courbe de Gauss centrée sur λmax avec mise à l'échelle selon la loi de Beer-Lambert A = ε · c · l. Transmittance T = 10^(-A) · 100%.

📚 Références scientifiques (Chicago Author-Date)
  1. Chen Y; Jin J; Xu X; Zhang H; Zhu L. 2026. "Effect of oil-soluble emulsifiers on the self-assembly behaviors of citric acid esters in bulk and emulsified systems." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117896. [DOI]
  2. Atmaca YB; Kehr NS. 2026. "Synthesis of citric acid-coated nanomaterials releasing oxygen and antioxidant vitamin E and investigation of their effects on healthy and cancer cells under hypoxic and normoxic conditions." Biomedical materials (Bristol, England). https://doi.org/10.1088/1748-605X/ae5e12. [DOI]
  3. Hategekimana F; Elçin AE; Elçin YM. 2026. "Green synthesis of caffeine-catalyzed citric acid-PPG/PEG crosslinked alginate hydrogel scaffolds for prospective biomedical applications." International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2026.151850. [DOI]
  4. Ma CM; Liu WR; Xu Y; Zhang G; Xu XY; Wang B. 2026. "Preparation, characterization and toxicological evaluation of tapioca starch/chitosan/anhydrous citric acid composite edible films and their application in cooked rice." International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2026.151712. [DOI]
  5. Hirano S; Oshima T; Inada A; Tsuruda T. 2026. "Dissolving Amyloid Fibrils with Natural Deep Eutectic Solvents: Citric Acid-Glycerol Achieves Superior Solubilization and Partial Protein Refolding." ACS applied bio materials. https://doi.org/10.1021/acsabm.5c02553. [DOI]
  6. EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A, Prieto-Maradona M, Theodoridou K, Yurkov A, Dulak-Lis M, Galobart J, Vettori MV, Villa AN, Pettenati E, Valeri P.. 2026. "Safety and efficacy of the feed additives consisting of citric acid anhydrous and citric acid monohydrate produced by fermentation with <i>Aspergillus niger</i>CGMCC 6.466 for all animal species (Sunshine Biotech International)." . https://doi.org/10.2903/j.efsa.2026.10031. [DOI]
  7. York G; Kelly AW; Robison L; Iuzzolino L; Lee AY. 2025. "Revisiting the solid-state landscape of creatine citric acid: A salt or a cocrystal?." Journal of pharmaceutical sciences. https://doi.org/10.1016/j.xphs.2025.01.023. [DOI]
  8. Ugarte-Pereyra C; Argyri SM; Bordes R; Vincent-Bonnieu S; Beaucé J; Binks BP. 2025. "Design of oleofoams from citric acid esters of mono-/diglycerides." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117119. [DOI]
  9. Linstrom, Peter J., and William G. Mallard, eds. 2023. NIST Chemistry WebBook, NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. [DOI]
  10. Mayerhöfer, Thomas G., Samir Pahlow, and Jürgen Popp. 2020. "The Bouguer-Beer-Lambert Law: Shining Light on the Obscure." ChemPhysChem 21 (18): 2029-2046. [DOI]
  11. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2017. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning. ISBN 978-1-305-57721-3.
  12. Lindon, John C., George E. Tranter, and David W. Koppenaal, eds. 2017. "Encyclopedia of Spectroscopy and Spectrometry." 3rd ed. Amsterdam: Academic Press. ISBN 978-0-12-803224-4.
  13. Field, Leslie D., Sev Sternhell, and John R. Kalman. 2013. "Organic Structures from Spectra." 5th ed. Chichester: Wiley. ISBN 978-1-119-96582-6.
  14. Reusch, William. 2013. "Virtual Textbook of Organic Chemistry: Spectroscopy." East Lansing, MI: Michigan State University.
  15. Lampman, Gary M., Donald L. Pavia, George S. Kriz, and James R. Vyvyan. 2010. "Spectroscopy." 4th ed. Belmont, CA: Cengage Learning. ISBN 978-0-495-88992-9.
  16. Kalsi, P. S. 2010. "Spectroscopy of Organic Compounds." 6th ed. New Delhi: New Age International. ISBN 978-81-224-2032-9.
  17. Williams, Dudley H., and Ian Fleming. 2008. "Spectroscopic Methods in Organic Chemistry." 6th ed. London: McGraw-Hill. ISBN 978-0-07-711559-0.
  18. Sadek, Paul C. 2002. The HPLC Solvent Guide. 2nd ed. Hoboken: Wiley. ISBN 978-0-471-41242-2.
  19. Banwell, Colin N., and Elaine M. McCash. 1994. "Fundamentals of Molecular Spectroscopy." 4th ed. London: McGraw-Hill. ISBN 978-0-07-707976-1.
  20. Perkampus, Heinz-Helmut. 1992. UV-VIS Spectroscopy and Its Applications. Berlin: Springer. https://doi.org/10.1007/978-3-642-77479-9.
  21. Fieser, Louis F. 1949. "Extension of Woodward's Rules for Prediction of Conjugated Diene Absorption." Journal of the American Chemical Society 71 (5): 1854-1857. [DOI]
  22. Woodward, Robert B. 1942. "Structure and the Absorption Spectra of Alpha,Beta-Unsaturated Ketones." Journal of the American Chemical Society 64 (1): 72-75. [DOI]
  23. Beer, August. 1852. "Bestimmung der Absorption des rothen Lichts in farbigen Flüssigkeiten." Annalen der Physik und Chemie 86: 78-88. https://doi.org/10.1002/andp.18521620505.
  24. Lambert, Johann Heinrich. 1760. Photometria. Augsburg: Sumptibus Vidae.

📖 Wartość λmax = 184 nm pochodzi z bazy/literatury. Brak niezależnego potwierdzenia krzyżowego (NIST / CrossRef / PubChem) — weryfikacja krzyżowa niedostępna.

REST: /wp-json/molgod/v1/spectra/uv-vis/77-92-9?solvent=water&path_length_cm=1

☣️ Toxicité (LD50 / LC50) GHS Cat. 5 — Très faibleMolGod_LD50_1
LD50
3000 mg/kg
Gatunek / droga
Rat / doustnie
Klasyfikacja
Slightly toxic
Skala GHS (Acute Toxicity, oral, mg/kg bw):
Cat 1 (≤5)
Cat 2 (5–50)
Cat 3 (50–300)
Cat 4 (300–2000)
Cat 5 (2000–5000)

Source : RTECS GE7350000; Lipnick et al. 1995, Food Chem. Toxicol. (1995). CAS 77-92-9.

Les données DL50/CL50 sont fournies à titre indicatif uniquement ; elles ne remplacent ni la fiche de données de sécurité (FDS) ni l'évaluation d'un expert toxicologue. Classification GHS pour la voie orale (mg/kg pc) selon UN GHS, 10e rév. 2023, Annexe 1 §3.1.1.

Bibliographie (Chicago)
  • Hodge, Harold C., and James H. Sterner. 1949. "Tabulation of toxicity classes." American Industrial Hygiene Association Quarterly 10 (4): 93-96.
  • U.S. EPA. 2024. "ChemView." https://chemview.epa.gov/.
  • United Nations. 2023. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS)." 10th rev. ed. New York: UN.
  • Lipnick, Robert L., et al. 1995. "Comparison of the up-and-down, conventional LD50, and fixed-dose acute toxicity procedures." Food and Chemical Toxicology 33 (3): 223-231.
  • ATSDR. 2024. "Toxicological Profiles." Agency for Toxic Substances and Disease Registry. https://www.atsdr.cdc.gov/.
  • Hayes, Wallace, and Claire L. Kruger, eds. 2014. "Hayes' Principles and Methods of Toxicology." 6th ed. CRC Press.
  • Lewis, Richard J. 2012. "Sax's Dangerous Properties of Industrial Materials." 12th ed. Wiley.
  • IARC. 2024. "Monographs on the Evaluation of Carcinogenic Risks to Humans." International Agency for Research on Cancer (per kryteria klasyfikacji rakotwórczości IARC Group 1/2A/2B).
  • Pohanish, Richard P. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." 7th ed. Elsevier.
  • Bingham, Eula, Barbara Cohrssen, and Charles H. Powell, eds. 2012. "Patty's Toxicology." 6th ed. Wiley.
  • WHO. 2023. "Recommended Classification of Pesticides by Hazard." World Health Organization (zgodne z UN GHS Annex 1 §3.1.1).
💎 Formes cristallines / Polymorphes 2 formy w bazie MolGod_POLYMORPH_2
Forme Groupe d'espace Maille (Å, °) Densité (g/cm³) P.f. (°C) CCDC
anhydrous stable P21/a a=12.817 b=5.619 c=11.326 · α=90 β=111.218 γ=90 · Z=4 1.665 153.0 CITRAC10 DOI
monohydrate P21/a a=12.817 b=5.623 c=11.414 · α=90 β=111.45 γ=90 · Z=4 1.542 100.0 CITARC10 DOI

Source : Cambridge Structural Database (CSD) + littérature primaire. Le polymorphisme influe sur la solubilité, la biodisponibilité et la stabilité (Brittain 2009 ; Bernstein 2020).

Bibliographie étendue — 3 sources (PubMed/CrossRef/EuropePMC)
  • PUBChen Y; Jin J; Xu X; Zhang H; Zhu L. 2026. "Effect of oil-soluble emulsifiers on the self-assembly behaviors of citric acid esters in bulk and emulsified systems." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117896.
  • PUBYork G; Kelly AW; Robison L; Iuzzolino L; Lee AY. 2025. "Revisiting the solid-state landscape of creatine citric acid: A salt or a cocrystal?." Journal of pharmaceutical sciences. https://doi.org/10.1016/j.xphs.2025.01.023.
  • PUBUgarte-Pereyra C; Argyri SM; Bordes R; Vincent-Bonnieu S; Beaucé J; Binks BP. 2025. "Design of oleofoams from citric acid esters of mono-/diglycerides." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117119.
📚 Références scientifiques (Chicago Author-Date)
  1. Chen Y; Jin J; Xu X; Zhang H; Zhu L. 2026. "Effect of oil-soluble emulsifiers on the self-assembly behaviors of citric acid esters in bulk and emulsified systems." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117896. [DOI]
  2. Atmaca YB; Kehr NS. 2026. "Synthesis of citric acid-coated nanomaterials releasing oxygen and antioxidant vitamin E and investigation of their effects on healthy and cancer cells under hypoxic and normoxic conditions." Biomedical materials (Bristol, England). https://doi.org/10.1088/1748-605X/ae5e12. [DOI]
  3. Hategekimana F; Elçin AE; Elçin YM. 2026. "Green synthesis of caffeine-catalyzed citric acid-PPG/PEG crosslinked alginate hydrogel scaffolds for prospective biomedical applications." International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2026.151850. [DOI]
  4. Ma CM; Liu WR; Xu Y; Zhang G; Xu XY; Wang B. 2026. "Preparation, characterization and toxicological evaluation of tapioca starch/chitosan/anhydrous citric acid composite edible films and their application in cooked rice." International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2026.151712. [DOI]
  5. Hirano S; Oshima T; Inada A; Tsuruda T. 2026. "Dissolving Amyloid Fibrils with Natural Deep Eutectic Solvents: Citric Acid-Glycerol Achieves Superior Solubilization and Partial Protein Refolding." ACS applied bio materials. https://doi.org/10.1021/acsabm.5c02553. [DOI]
  6. EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A, Prieto-Maradona M, Theodoridou K, Yurkov A, Dulak-Lis M, Galobart J, Vettori MV, Villa AN, Pettenati E, Valeri P.. 2026. "Safety and efficacy of the feed additives consisting of citric acid anhydrous and citric acid monohydrate produced by fermentation with <i>Aspergillus niger</i>CGMCC 6.466 for all animal species (Sunshine Biotech International)." . https://doi.org/10.2903/j.efsa.2026.10031. [DOI]
  7. York G; Kelly AW; Robison L; Iuzzolino L; Lee AY. 2025. "Revisiting the solid-state landscape of creatine citric acid: A salt or a cocrystal?." Journal of pharmaceutical sciences. https://doi.org/10.1016/j.xphs.2025.01.023. [DOI]
  8. Ugarte-Pereyra C; Argyri SM; Bordes R; Vincent-Bonnieu S; Beaucé J; Binks BP. 2025. "Design of oleofoams from citric acid esters of mono-/diglycerides." Food research international (Ottawa, Ont.). https://doi.org/10.1016/j.foodres.2025.117119. [DOI]
  9. Newman, David J., and Gordon M. Cragg. 2020. "Natural Products as Sources of New Drugs over the Nearly Four Decades from 01/1981 to 09/2019." Journal of Natural Products 83 (3): 770-803.
  10. Macrae, Clare F., Ioana Sovago, Simon J. Cottrell, et al. 2020. "Mercury 4.0: from visualization to analysis, design and prediction." Journal of Applied Crystallography 53 (1): 226-235. https://doi.org/10.1107/S1600576719014092.
  11. International Conference on Harmonisation. 2017. "ICH Q6A: Specifications: Test Procedures and Acceptance Criteria for New Drug Substances and New Drug Products." Geneva: ICH. https://www.ich.org/page/quality-guidelines.
  12. Groom, Colin R., Ian J. Bruno, Matthew P. Lightfoot, and Suzanna C. Ward. 2016. "The Cambridge Structural Database." Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials 72 (2): 171-179.
  13. Davies, Mark, Michał Nowotka, George Papadatos, et al. 2015. "ChEMBL Web Services: Streamlining Access to Drug Discovery Data and Utilities." Nucleic Acids Research 43 (W1): W612-W620.
  14. Price, Sarah L. 2014. "Predicting crystal structures of organic compounds." Chemical Society Reviews 43 (7): 2098-2111. https://doi.org/10.1039/C3CS60279F.
  15. Hann, Michael M. 2011. "Molecular Obesity, Potency and Other Addictions in Drug Discovery." MedChemComm 2 (5): 349-355.
  16. Yu, Lian. 2010. "Polymorphism in molecular solids: an extraordinary system of red, orange, and yellow crystals." Accounts of Chemical Research 43 (9): 1257-1266. https://doi.org/10.1021/ar100040r.
  17. Spek, Anthony L. 2009. "Structure validation in chemical crystallography." Acta Crystallographica D 65 (2): 148-155. https://doi.org/10.1107/S090744490804362X.
  18. Sheldrick, George M. 2008. "A short history of SHELX." Acta Crystallographica A 64 (1): 112-122. https://doi.org/10.1107/S0108767307043930.
  19. Florence, Alastair J. 2008. "Approaches to high-throughput physical form screening and discovery." In Polymorphism: in the Pharmaceutical Industry, edited by Rolf Hilfiker, 139-184. Weinheim: Wiley-VCH.
  20. Leeson, Paul D., and Brian Springthorpe. 2007. "The Influence of Drug-Like Concepts on Decision-Making in Medicinal Chemistry." Nature Reviews Drug Discovery 6 (11): 881-890.
  21. Bond, Andrew D., Roland Boese, and Gautam R. Desiraju. 2007. "On the polymorphism of aspirin: crystalline aspirin as intergrowths of two polymorphic domains." Angewandte Chemie International Edition 46 (4): 618-622. https://doi.org/10.1002/anie.200603373.
  22. Hilfiker, Rolf, ed. 2006. Polymorphism in the Pharmaceutical Industry. Weinheim: Wiley-VCH.
  23. Singhal, Dharmendra, and William Curatolo. 2004. "Drug Polymorphism and Dosage Form Design: A Practical Perspective." Advanced Drug Delivery Reviews 56 (3): 335-347.
  24. Datta, Sapan, and David J. W. Grant. 2004. "Crystal structures of drugs: advances in determination, prediction and engineering." Nature Reviews Drug Discovery 3 (1): 42-57. https://doi.org/10.1038/nrd1280.
  25. Allen, Frank H. 2002. "The Cambridge Structural Database: a quarter of a million crystal structures and rising." Acta Crystallographica B 58 (3): 380-388. https://doi.org/10.1107/S0108768102003890.
  26. Bauer, Jeffery, Stephen Spanton, Rodger Henry, et al. 2001. "Ritonavir: an extraordinary example of conformational polymorphism." Pharmaceutical Research 18 (6): 859-866. https://doi.org/10.1023/A:1011052932607.
  27. Vippagunta, Sudha R., Harry G. Brittain, and David J. W. Grant. 2001. "Crystalline solids." Advanced Drug Delivery Reviews 48 (1): 3-26. https://doi.org/10.1016/S0169-409X(01)00097-7.
  28. Mullin, John W. 2001. Crystallization. 4th ed. Oxford: Butterworth-Heinemann.
  29. Chemburkar, Sanjay R., Jeffery Bauer, Klaus Deming, et al. 2000. "Dealing with the impact of ritonavir polymorphs on the late stages of bulk drug process development." Organic Process Research & Development 4 (5): 413-417. https://doi.org/10.1021/op000023y.
  30. Davey, Roger J., and John Garside. 2000. From Molecules to Crystallizers: An Introduction to Crystallization. Oxford Chemistry Primer 86. Oxford: Oxford University Press.
  31. U.S. Food and Drug Administration. 2000. "Guidance for Industry — Q6A Specifications: Test Procedures and Acceptance Criteria for New Drug Substances and New Drug Products: Chemical Substances." Silver Spring, MD: FDA. https://www.fda.gov/media/71361/download.
  32. Bernstein, Joel, and Anthony L. Henck. 1998. "Disappearing and Reappearing Polymorphs — An Anathema to Crystal Engineering?" Crystal Engineering 1 (2): 119-125.
  33. Threlfall, Terence L. 1995. "Analysis of organic polymorphs: a review." The Analyst 120 (10): 2435-2460. https://doi.org/10.1039/AN9952002435.
  34. Desiraju, Gautam R. 1995. "Supramolecular synthons in crystal engineering — a new organic synthesis." Angewandte Chemie International Edition 34 (21): 2311-2327. https://doi.org/10.1002/anie.199523111.
  35. Bürgi, Hans-Beat, and Jack D. Dunitz, eds. 1994. Structure Correlation. 2 vols. Weinheim: VCH.
  36. Gavezzotti, Angelo. 1994. "Are crystal structures predictable?" Accounts of Chemical Research 27 (10): 309-314. https://doi.org/10.1021/ar00046a004.
  37. Etter, Margaret C. 1990. "Encoding and decoding hydrogen-bond patterns of organic compounds." Accounts of Chemical Research 23 (4): 120-126. https://doi.org/10.1021/ar00172a005.
  38. Burger, Artur, and Rudolf Ramberger. 1979. "On the polymorphism of pharmaceuticals and other molecular crystals. I. Theory of thermodynamic rules." Mikrochimica Acta 72 (3-4): 259-271. https://doi.org/10.1007/BF01197379.
  39. Haleblian, John, and Walter McCrone. 1969. "Pharmaceutical applications of polymorphism." Journal of Pharmaceutical Sciences 58 (8): 911-929. https://doi.org/10.1002/jps.2600580802.
  40. McCrone, Walter C. 1965. "Polymorphism." In Physics and Chemistry of the Organic Solid State, edited by David Fox, Mortimer M. Labes, and Arnold Weissberger, vol. 2, 725-767. New York: Interscience.
  41. Ostwald, Wilhelm. 1897. "Studien über die Bildung und Umwandlung fester Körper." Zeitschrift für Physikalische Chemie 22: 289-330.
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📚 RÉFÉRENCES (Bibliographie agrégée, Chicago Author-Date) 108 éléments

Toutes les sources scientifiques citées dans les accordéons ci-dessus pour le CAS 77-92-9. Format : Chicago Manual of Style, 17e éd., système Auteur-Date.

🗄️ Bases de données scientifiques

  1. NIST. 2026. NIST Chemistry WebBook: CAS 77-92-9. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=77-92-9. (Accessed 2026-11-12.)
  2. AIST. 2026. Spectral Database for Organic Compounds (SDBS): CAS 77-92-9. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/. (Accessed 2026-11-12.)
  3. PubChem. 2026. PubChem Compound Summary: CAS 77-92-9. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=77-92-9. (Accessed 2026-11-12.)
  4. ECHA. 2026. C&L Inventory and REACH Registration: CAS 77-92-9. Helsinki: European Chemicals Agency. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp. (Accessed 2026-11-12.)

📐 Normes / Lignes directrices

  1. ICH. 2026. "ICH Harmonised Guideline: CAS 77-92-9." Geneva: International Council for Harmonisation. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf. (Accessed 2026-11-12.)
  2. National Fire Protection Association (NFPA). 2024. "NFPA 30: Flammable and Combustible Liquids Code." NFPA, Quincy, MA. https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=30.
  3. Occupational Safety and Health Administration (OSHA). 2023. "29 CFR 1910.106 — Flammable Liquids." U.S. Department of Labor, Federal Register. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.106.
  4. European Chemicals Agency (ECHA). 2024. "Annex VI to Regulation (EC) No 1272/2008 (CLP) — Harmonised Classification and Labelling." ECHA, Helsinki / Official Journal of the European Union. https://echa.europa.eu/regulations/clp/clp-classification.
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and performance requirements for chemical risks." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=205:110:::::FSP_PROJECT,FSP_ORG_ID:38536,6080&cs=1B0DAA8B85DF42E4A2C70E5D71F0BFA32.
  6. European Committee for Standardization (CEN). 2001. "EN 166:2001 — Personal eye-protection — Specifications." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:6541&cs=1F1A4E0A78C4DB6A28DBE2E8C29D89DCF.
  7. European Committee for Standardization (CEN). 2009. "EN 14605:2005+A1:2009 — Protective clothing against liquid chemicals — Performance requirements for clothing with liquid-tight (Type 3) or spray-tight (Type 4) connections." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:21581&cs=1A04A2D3C7CC58E9E6CB58D55F7EBFB7E.
  8. National Institute for Occupational Safety and Health (NIOSH). 2017. "Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide." U.S. Department of Health & Human Services / CDC. https://www.cdc.gov/niosh/ncpc/default.html.
  9. Occupational Safety and Health Administration (OSHA). 2011. "Personal Protective Equipment — General requirements." U.S. Department of Labor — 29 CFR 1910.132. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.132.

📖 Livres

  1. Rumble, John R., ed. 2019. CRC Handbook of Chemistry and Physics: 100th Edition. Boca Raton, FL: CRC Press. https://hbcp.chemnetbase.com/.
  2. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook, 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/Hansen-Solubility-Parameters-A-Users-Handbook/Hansen/p/book/9780849372483.
  3. Barton, Allan F. M. 1991. CRC Handbook of Solubility Parameters and Other Cohesion Parameters: 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/CRC-Handbook-of-Solubility-Parameters-and-Other-Cohesion-Parameters/Barton/p/book/9780849301766.
  4. Connors, Kenneth A., Gordon L. Amidon, and Valentino J. Stella. 1986. Chemical Stability of Pharmaceuticals: A Handbook for Pharmacists, 2nd ed.. New York: Wiley. https://doi.org/10.1002/0471734683.
  5. Urben, Peter G. 2017. Bretherick's Handbook of Reactive Chemical Hazards, 8th Edition. Academic Press / Elsevier, Oxford. https://www.sciencedirect.com/book/9780081010594.

📘 Monographies

  1. IARC. 2026. IARC Monographs on the Identification of Carcinogenic Hazards to Humans: CAS 77-92-9. Lyon, France: International Agency for Research on Cancer, World Health Organization. (Accessed 2026-11-12.)

📄 Articles scientifiques (évalués par les pairs)

  1. Stefanis, Emmanuel, and Costas Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." International Journal of Thermophysics 29: 568-585. https://doi.org/10.1007/s10765-008-0415-z.
  2. Stoll, Vincent S., and John S. Blanchard. 1990. "Buffers: Principles and Practice: In Methods in Enzymology, vol. 182." San Diego: Academic Press. https://doi.org/10.1016/0076-6879(90)82008-P.

🌐 Sites web

  1. ECHA. 2023. "Guidance on the Application of the CLP Criteria." European Chemicals Agency. https://echa.europa.eu/guidance-documents/guidance-on-clp.
  2. European Parliament. 2006. "Regulation (EC) No 1907/2006 (REACH)." Official Journal of the European Union L 396: 1–849.
  3. ECHA. 2023. "Candidate List of Substances of Very High Concern for Authorisation." European Chemicals Agency. https://echa.europa.eu/candidate-list-table.
  4. European Parliament. 2008. "Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of Substances and Mixtures (CLP)." Official Journal of the European Union L 353: 1–1355.
  5. ECHA. 2017. "Guidance on the Compilation of Safety Data Sheets." Version 3.1. European Chemicals Agency. ECHA-17-G-01-EN. https://echa.europa.eu/documents/10162/23047722/sds_en.pdf.
  6. ECHA. 2022. "Restrictions Under REACH — Annex XVII." European Chemicals Agency. https://echa.europa.eu/substances-restricted-under-reach.
  7. United Nations. 2021. Globally Harmonized System of Classification and Labelling of Chemicals (GHS). 9th revised ed. ST/SG/AC.10/30/Rev.9. New York and Geneva: United Nations. https://unece.org/ghs-rev9-2021.
  8. ECHA. 2020. "Understanding REACH." European Chemicals Agency. https://echa.europa.eu/regulations/reach/understanding-reach.
  9. Institut für Arbeitsschutz (IFA) (2024) — Citric acid — GESTIS Substance Database https://gestis.dguv.de/data?name=028280.
  10. U.S. OSHA. 2026. "Occupational Safety and Health Guidance: CAS 77-92-9." Washington, DC: U.S. Occupational Safety and Health Administration. https://www.osha.gov/hazwoper. (Accessed 2026-11-12.)
  11. National Fire Protection Association (2018) — NFPA 472: Standard for Competence of Responders to Hazardous Materials/Weapons of Mass Destruction Incidents https://www.nfpa.org/codes-and-standards/nfpa-472.
  12. European Union. 2026. "EUR-Lex Legal Database: CAS 77-92-9." Luxembourg: Publications Office of the European Union. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32012L0018. (Accessed 2026-11-12.)
  13. U.S. National Institute for Occupational Safety and Health (2024) — NIOSH Pocket Guide to Chemical Hazards https://www.cdc.gov/niosh/npg/.
  14. Snyder, Lloyd R., John W. Dolan, and Joseph J. Kirkland. 2010. Introduction to Modern Liquid Chromatography. Wiley.
  15. Schoenmakers, Peter J.. 1986. Optimization of Chromatographic Selectivity: A Guide to Method Development. Elsevier.
  16. Snyder, L. R., and J. W. Dolan. 2007. High-Performance Gradient Elution: The Practical Application of the Linear-Solvent-Strength Model. Wiley.
  17. Nikitas, Pavlos, and Adrian Pappa-Louisi. 2009. "Retention models for isocratic and gradient elution in reversed-phase liquid chromatography." Journal of Chromatography A 1216: 1737-1755. https://doi.org/10.1016/j.chroma.2008.10.005.
  18. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." Journal of Chromatography A 1216: 1764-1772. https://doi.org/10.1016/j.chroma.2008.11.094.
  19. Dong, Michael W.. 2019. HPLC and UHPLC for Practicing Scientists. Wiley. https://doi.org/10.1002/9781119313793.
  20. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." Journal of Separation Science 30: 1167-1182. https://doi.org/10.1002/jssc.200700026.
  21. Dolan, John W.. 2013. "When to Modify Method Conditions." LCGC North America 31: 192-199. https://www.chromatographyonline.com/view/when-modify-method-conditions.
  22. Meyer, Veronika R.. 2010. Practical High-Performance Liquid Chromatography. Wiley.
  23. Engelhardt, Heinz. 2014. 100 Years of Chromatography. Wiley-VCH.
  24. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." Analytical Chemistry 82: 8525-8531. https://doi.org/10.1021/ac101742z.
  25. Van Deemter, J. J., F. J. Zuiderweg, and A. Klinkenberg. 1956. "Longitudinal diffusion and resistance to mass transfer as causes of nonideality in chromatography." https://doi.org/10.1016/0009-2509(56)80003-1.
  26. Giddings, J. Calvin. 1965. "Dynamics of Chromatography, Part I: Principles and Theory." Marcel Dekker.
  27. Poppe, Hans. 1997. "Some reflections on speed and efficiency of modern chromatographic methods." https://doi.org/10.1016/S0021-9673(97)00376-2.
  28. Wu, Naijun, and Anton M. Clausen. 2007. "Fundamental and practical aspects of ultrahigh pressure liquid chromatography for fast separations." https://doi.org/10.1002/jssc.200700026.
  29. Carr, Peter W.. 2009. "The new physical chemistry of HPLC." https://doi.org/10.1016/j.chroma.2008.11.094.
  30. Knox, John H.. 1977. "Practical aspects of LC theory." https://doi.org/10.1093/chromsci/15.9.352.
  31. Snyder, L. R., J. J. Kirkland, and J. L. Glajch. 1997. "Practical HPLC Method Development." Wiley.
  32. Vivó-Truyols, Gabriel, and Hans-Gerd Janssen. 2010. "Probabilistic approach to peak deconvolution in chromatography." https://doi.org/10.1021/ac101742z.
  33. Sadek, Paul C.. 2002. "The HPLC Solvent Guide." Wiley-Interscience.
  34. Snyder, L. R.. 1978. "Classification of the solvent properties of common liquids." https://doi.org/10.1093/chromsci/16.6.223.
  35. Reichardt, Christian, and Thomas Welton. 2010. "Solvents and Solvent Effects in Organic Chemistry." Wiley-VCH.
  36. Vailaya, Anant, and Csaba Horváth. 1998. "Retention thermodynamics in hydrophobic interaction chromatography." https://doi.org/10.1021/ie980212h.
  37. Krstulović, Andrea M., and Phyllis R. Brown. 1981. "Reversed-phase High-Performance Liquid Chromatography." Wiley.
  38. Boysen, Reinhard I., and Milton T. W. Hearn. 2009. "Multi-modal HPLC of proteins." https://doi.org/10.1093/chromsci/47.8.645.
  39. USP General Chapter <621>. 2024. "Chromatography." United States Pharmacopeial Convention. https://www.usp.org/harmonization-standards/pdg/general-chapters/chromatography.
  40. Foley, Joe P., and John G. Dorsey. 1983. "Equations for calculation of chromatographic figures of merit for ideal and skewed peaks." https://doi.org/10.1021/ac00255a033.
  41. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." Wiley. https://doi.org/10.1002/9780470508183.
  42. Dolan, John W.. 2003. "Peak tailing and resolution." https://www.chromatographyonline.com/view/peak-tailing-and-resolution.
  43. Kromidas, Stavros. 2017. "HPLC Made to Measure: A Practical Handbook for Optimization." Wiley-VCH.
  44. Heyden, Yvan Vander, et al.. 2009. "Robustness of pharmaceutical liquid chromatographic methods." https://doi.org/10.1016/j.jchromb.2008.10.052.
  45. United States Pharmacopeial Convention. 2024. "USP <621> Chromatography." In United States Pharmacopeia and National Formulary, USP 47-NF 42. Rockville, MD: USP. https://www.uspnf.com/.
  46. European Pharmacopoeia Commission. 2024. "2.2.46 Chromatographic Separation Techniques." In European Pharmacopoeia, 11th ed. Strasbourg: Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  47. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories." Geneva: ISO. https://www.iso.org/standard/66912.html.
  48. Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
  49. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
  50. Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
  51. EURACHEM/CITAC. 2012. "Quantifying Uncertainty in Analytical Measurement." 3rd ed. EURACHEM/CITAC Guide CG 4. https://www.eurachem.org/images/stories/Guides/pdf/QUAM2012_P1.pdf.
  52. Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. "Introduction to Modern Liquid Chromatography." John Wiley & Sons. https://doi.org/10.1002/9780470508183.
  53. Dolan, John W.. 2003. "How much resolution is enough?." https://www.chromatographyonline.com/view/how-much-resolution-enough.
  54. USP General Chapter <621>. 2024. "Chromatography (System Suitability section)." United States Pharmacopeial Convention. https://www.usp.org/harmonization-standards/pdg/general-chapters/chromatography.
  55. U.S. FDA. 2026. "FDA Guidance and Resources: CAS 77-92-9." Silver Spring, MD: U.S. Food and Drug Administration. https://www.fda.gov/media/74954/download. (Accessed 2026-11-12.)
  56. Rozet, Eric, et al.. 2013. "Analysis of recent pharmaceutical regulatory documents on analytical method validation." https://doi.org/10.1016/j.chroma.2007.03.111.
  57. European Medicines Agency (EMA). 2011. "Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009." EMA. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-bioanalytical-method-validation_en.pdf.
  58. Kazakevich, Yuri V., and Rosario LoBrutto, eds.. 2007. "HPLC for Pharmaceutical Scientists." Wiley-Interscience. https://doi.org/10.1002/9780470087954.
  59. AOAC International. 2016. "Appendix F: Guidelines for Standard Method Performance Requirements." AOAC INTERNATIONAL. https://www.aoac.org/wp-content/uploads/2019/08/app_f.pdf.
  60. International Organization for Standardization. 1994. "ISO 5725-2:1994 Accuracy (Trueness and Precision) of Measurement Methods and Results — Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method." Geneva: ISO. https://www.iso.org/standard/11834.html.
  61. Grubbs, Frank E. 1950. "Sample Criteria for Testing Outlying Observations." Annals of Mathematical Statistics 21 (1): 27–58.
  62. Dixon, Wilfrid J. 1950. "Analysis of Extreme Values." Annals of Mathematical Statistics 21 (4): 488–506.
  63. Snedecor, George W., and William G. Cochran. 1989. Statistical Methods. 8th ed. Ames, IA: Iowa State University Press.
  64. Student [William Sealy Gosset]. 1908. "The Probable Error of a Mean." Biometrika 6 (1): 1–25.
  65. International Organization for Standardization. 2005. "ISO 3534-1:2006 Statistics — Vocabulary and Symbols — Part 1: General Statistical Terms and Terms Used in Probability." Geneva: ISO. https://www.iso.org/standard/40145.html.
  66. Thompson, Michael, Stephen L. R. Ellison, and Roger Wood. 2002. "Harmonized Guidelines for Single-Laboratory Validation of Methods of Analysis." Pure and Applied Chemistry 74 (5): 835–855.
  67. United Nations Economic Commission for Europe. 2024. European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR), Applicable as from 1 January 2025 (ECE/TRANS/352). Geneva: UNECE. https://unece.org/transport/dangerous-goods/adr-2025-edition.
  68. International Air Transport Association. 2026. Dangerous Goods Regulations (DGR). 67th ed. Montreal: IATA. https://www.iata.org/en/programs/cargo/dgr/.
  69. International Maritime Organization. 2024. International Maritime Dangerous Goods (IMDG) Code, 2024 Edition (Amendment 42-24). London: IMO. https://www.imo.org/en/OurWork/Safety/Pages/DangerousGoods-default.aspx.
  70. United Nations. 2025. Recommendations on the Transport of Dangerous Goods: Model Regulations (Orange Book). 24th revised ed. ST/SG/AC.10/1/Rev.24. New York and Geneva: United Nations. https://unece.org/transport/dangerous-goods/un-model-regulations.
  71. International Civil Aviation Organization. 2025. Technical Instructions for the Safe Transport of Dangerous Goods by Air (Doc 9284). 2025–2026 ed. Montreal: ICAO. https://www.icao.int/safety/DangerousGoods/Pages/technical-instructions.aspx.
  72. United States Pharmacopeia (USP) Convention. 2024. "USP General Chapter <621> Chromatography." USP. https://www.usp.org/sites/default/files/usp/document/harmonization/gen-chapter/g05_pf_30_4_2004.pdf.
  73. European Medicines Agency (EMA). 2011. "Guideline on bioanalytical method validation EMEA/CHMP/EWP/192217/2009." EMA Committee for Medicinal Products for Human Use. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-bioanalytical-method-validation_en.pdf.
  74. Sejm RP. 2026. "Internetowy System Aktow Prawnych (ISAP): CAS 77-92-9." Warszawa: Kancelaria Sejmu Rzeczypospolitej Polskiej. https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20200000010. (Accessed 2026-11-12.)
  75. Ministerstwo Klimatu i Srodowiska. 2026. "Baza Danych o Odpadach (BDO): CAS 77-92-9." Warszawa: Ministerstwo Klimatu i Srodowiska. https://bdo.mos.gov.pl/. (Accessed 2026-11-12.)
  76. Pohanish, Richard P.. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." Elsevier.
  77. Lewis, Richard J.. 2012. "Sax's Dangerous Properties of Industrial Materials." Wiley.
  78. NIOSH. 2024. "Pocket Guide to Chemical Hazards." U.S. Department of Health and Human Services. https://www.cdc.gov/niosh/npg/.
  79. United Nations Economic Commission for Europe (UNECE). 2023. "European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." UNECE. https://unece.org/transport/standards/transport/dangerous-goods/adr-2025.
  80. IPCS INCHEM. 2024. "International Programme on Chemical Safety — Waste Management Guidelines." WHO/UNEP/ILO. https://www.inchem.org/.
  81. International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. https://www.iso.org/standard/66912.html.
  82. World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. https://www.who.int/publications/m/item/trs957-annex3.
  83. European Medicines Agency. 2014. "Guideline on Process Validation for Finished Products — Information and Data to Be Provided EMA/CHMP/CVMP/QWP/BWP/70278/2012." European Medicines Agency. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-process-validation-finished-products-information-data-be-provided-regulatory-submissions-revision-1_en.pdf.
  84. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. https://www.uspnf.com/.
  85. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  86. Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. https://picscheme.org/en/publications.
  87. International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. https://ipecamericas.org/sites/default/files/IPECPQGGMPGuide2017.pdf.
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