Mocznik, CAS 57-13-6 – odczynnik, CAS 57-13-6 — etykieta produktu chemicznego

Mocznik, CAS 57-13-6 – odczynnik

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MolGod_SDSCARD_1
REACH 2020/878
v1 · 02.08.2026
🧬 Visualiseur de molécule 3D
Chargement de la molécule...
Modèle 3D Urea, CAS 57-13-6, formule brute CH4N2O, masse molaire 60.056 g/mol
Aperçu chimique: UreaMolGod_OVERVIEW_1
Formule bruteCH4N2O[1]
Masse moléculaire60.056 g/mol[1]
Point de fusion132.7 °C[1]
Densité1.34 g/cm³[1]
LogP (lipophilie)-1.4[1]
Nom IUPACurea[1]
SMILESC(=O)(N)N[1]
InChIKeyXSQUKJJJFZCRTK-UHFFFAOYSA-N[1]

Synonymes: urea · 57-13-6 · carbamide · Carbonyldiamide · Ureophil

Sources des données : PubChem (NLM/NIH)
Dernière mise à jour : 2026-08-04

📚 Références scientifiques (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ dotyczy: Formule brute · Masse moléculaire · Point de fusion · Densité · LogP (lipophilie) · Nom IUPAC · SMILES · InChIKey

🎓 Badania akademickie: Urea

#1🎓Indian Institute of Science Education and Research Bhopal (IISER Bhopal)📅 2026
Chlorination-Enhanced H(+)/Cl(-) Co-Transport by Tyramine-Urea Conjugates
Pradhan NP; Nagrale PK; Lal B; Dhasmana Y; Chopra D; Srivastava A.
Rapport LAB complet →
#2🎓Indian Institute of Technology Delhi📅 2025
Phenyl Urea as an Aglet for Stabilizing Trans Proline: A Mimic of Ile-Phe Zipper
Dutta S; Dwivedi S; Haridas V.
Rapport LAB complet →
#3🎓Faculty of Engineering and Natural Sciences📅 2025
Urea-sugar and thiourea-sugar diastereomers: synthesis, crystal structure and biological activities
Işilar Ö; Bulut A; Tombul M; Güner A; Şahin O.
Rapport LAB complet →
#4🎓Faculty of Nutrition📅 2024
Weak association between urea-creatinine ratio and c-reactive protein with nutritional risk in hospitalized patients with COVID-19: A cross-sectional…
Souza JS; Giglio BM; Lobo PCB; Araújo VA; Pimentel GD.
Rapport LAB complet →
📊 Propriétés physicochimiques

Aperçu rapide

Formule : CH4N2O
MW : 60.06 g/mol
CAS : 57-13-6
Aspect : Cristaux blancs ou poudre
Odeur : PEUT DÉVELOPPER PROGRESSIVEMENT UNE LÉGÈRE ODEUR D'AMMONIAC, SURTOUT EN PRÉSENCE D'HUMIDITÉ

Propriétés détaillées

Propriété Valeur Unité Conditions Source
Masse volumique (ρ) 1.3400[1] g/cm³ 20 °C PubChem PUG-View
Point de fusion (mp) 132.70 °C[1] decomp. PubChem PUG-View
Solubilité dans l'eau 545.000[1] g/L 25 °C PubChem PUG-View
🔬 Propriétés avancées

Identifiants chimiques

SMILES: C(=O)(N)N

Sources des données : PubChem PUG-View

Dernière mise à jour : non confirmée

📚 Références scientifiques (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ dotyczy: Masse volumique (ρ) · Point de fusion (mp) · Solubilité dans l'eau
Statut réglementaire de la substance
Aucune entrée pour ce CAS dans les listes de restrictions vérifiées (liste candidate SVHC, REACH Annexe XVII ; ensembles de données incomplets - il ne s'agit pas d'une confirmation de conformité). Classification CLP et statut de transport (ADR) : voir la section GHS et la fiche de données de sécurité (SDS).
🧮 Calculateur stœchiométriqueMolGod_STOICH_1
🔍 Identifiants externesMolGod_EXTID_1
16 sur 16 systèmes d'ID100%
Base de donnéesIdentifiantActions
CAS Registry Number57-13-6Ouvrir →
PubChem CID1176[1]Ouvrir →
InChIKeyXSQUKJJJFZCRTK-UHFFFAOYSA-N[1]Ouvrir →
InChIInChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)[1]
SMILESC(=O)(N)N[1]
EC Number200-315-5[2]Ouvrir →
ChEMBLCHEMBL985[3]Ouvrir →
DrugBankDB03904Ouvrir →
KEGG CompoundD00023Ouvrir →
HMDBHMDB0000294Ouvrir →
ChemSpider1143[4]Ouvrir →
CompTox DTXSID (EPA)DTXSID4021426[5]Ouvrir →
MeSH UID (NLM)D014508Ouvrir →
UNII (FDA)8W8T17847WOuvrir →
NSC Number (NCI)34375Ouvrir →
WikiData QIDQ48318Ouvrir →

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

📚 Références scientifiques (Chicago Author-Date) (5 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ dotyczy: PubChem CID · InChIKey · InChI · SMILES
  2. ECHA. EC Inventory — EINECS, ELINCS, NLP and List Numbers assigned under REACH. Helsinki: European Chemicals Agency. ↗ dotyczy: EC Number
  3. ChEMBL. European Bioinformatics Institute (EMBL-EBI), bioactivity database. ↗ dotyczy: ChEMBL
  4. ChemSpider. Royal Society of Chemistry, chemical structure database. ↗ dotyczy: ChemSpider
  5. U.S. EPA. CompTox Chemicals Dashboard — ToxCast/Tox21 high-throughput screening bioactivity summary (testing coverage, not a hazard finding). Washington, DC: U.S. Environmental Protection Agency. ↗ dotyczy: CompTox DTXSID (EPA)
📡 Spectroscopie — CAS 57-13-6MolGod_SPECHUB_MAIN
📊 Bases de données de spectres spectroscopiques — données inline 9 sources MolGod_SPECDB_2

Les spectres sont récupérés à la demande depuis 9 sources. Chaque spectre est enregistré dans notre base — la prochaine ouverture = zéro requête vers l'API externe. Téléchargez JCAMP-DX / CSV / PNG pour chaque spectre sans avoir à chercher.

IR IR (Infrared) — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
— points
📚 NIST Chemistry WebBook, SRD 69
MS (NIST) Mass Spectrum (EI) — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
— points
📚 NIST Standard Reference Database 1A
UV-Vis UV/Visible Absorption — NIST WebBook
Public domain (US Federal)
▶ Cliquez pour charger le spectre
🔗 Source
— points
📚 NIST Chemistry WebBook, SRD 69
¹H NMR NMR (¹H, ¹³C) — NMRShiftDB
CC-BY-SA 4.0
▶ Cliquez pour charger le spectre
🔗 Source
— points
📚 Steinbeck C et al. (2003) J. Chem. Inf. Comput. Sci. 43(1):10–16 DOI: 10.1021/ci025588g
MS (MoNA) MoNA — MassBank of North America
CC-BY 4.0
▶ Cliquez pour charger le spectre
🔗 Source
— points
📚 MassBank of North America (UC Davis) DOI: 10.1002/jms.1777
IR/NMR/MS (SDBS) SDBS — Spectral Database for Organic Compounds (Japan AIST)
Free for non-commercial

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 IR/NMR/MS (SDBS) →
📚 SDBSWeb: https://sdbs.db.aist.go.jp (AIST, Japan)
JP Monograph Japanese Pharmacopoeia — Monographs
Reference only

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 JP Monograph →
📚 Japanese Pharmacopoeia 18th Edition (2021)
WHO INN WHO — International Nonproprietary Names
WHO Model Lists (free)

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 WHO INN →
📚 WHO INN Programme
DOAJ DOAJ — Directory of Open Access Journals
OA journal index (mixed)

Source de référence — pas d'API publique. Ouvrir dans une base externe :

🔗 DOAJ →
📚 DOAJ — doaj.org

Les données sont récupérées une seule fois (analyseur JCAMP-DX) et enregistrées dans la base locale de l'extension. Aucun téléchargement en double, aucune requête NIST lors des ouvertures suivantes. Licences respectées (seuls un lien profond et notre propre visualisation sont publiés).

🔬 Spectres interactifs (live — NIST / MoNA / NMRShiftDB / SDBS) (2)

Données récupérées en direct depuis plusieurs sources (priority-chain). JCAMP-DX / CSV / PNG disponibles au téléchargement sous chaque spectre.

IR — infrarouge à transformée de Fourier

Chargement de IR — infrarouge à transformée de Fourier…

MS — spectrométrie de masse (EI 70eV)

Chargement de MS — spectrométrie de masse (EI 70eV)…

📐 Propriétés physico-chimiques (base de données) 5 champs Score MolGod : Fiable
Propriété Valeur Unité Conditions Source
Point de fusion 132.70 [1] °C decomp. PubChem PUG-View
Point d'ébullition rozkłada się [1] — przed wrzeniem (decomp.) PubChem PUG-View
Solubilité dans l'eau 545.000 [1] g/L 25°C PubChem PUG-View
Masse volumique (ρ) 1.3400 [1] g/cm³ 20°C PubChem PUG-View
logP (octanol/eau) -1.400 [1] — 25°C PubChem PUG-View
📚 Références scientifiques (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ dotyczy: Point de fusion · Point d'ébullition · Solubilité dans l'eau · Masse volumique (ρ) · logP (octanol/eau)
🔄 Convertisseur d'unités de concentration LIVE MolGod_UNITCONV_1

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

MW : 60.056 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 ↗

🛡️ Sécurité — CAS 57-13-6MolGod_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.

Aucune classification GHS harmonisée pour cette substance — voir la fiche de données de sécurité (SDS) actuelle du fournisseur.

📚 Références scientifiques consolidées — Chicago auteur-date 10 sources

Références collectées dans tous les onglets du Safety Hub. CAS : 57-13-6 · 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)
🧪 Solubilité et compatibilité avec les solvants MolGod_SOLUB_1
Molécule
Urea
Formule
CH4N2O
logP (XLogP3)
-1.40
Masse (g/mol)
60.056
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)545 g/L (pomiar)23.8
✗ NieA (aqueous) (RP)
tamponculture cellulaireanalytiqueextraction (hydrophile)
Ethanol (EtOH)+ Bonne14.3
✗ NieA/B modifier (RP/NP)
extractionspectroscopie (UV-Vis)synthèsemodificateur HPLC
Methanol (MeOH)+ Bonne13.3
✗ NieA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent do 205 nm
Acetone~ Moy.19.7
✗ NieB modifier (NP)
GC headspacecristallisationdégraissagesynthèse
Acetonitrile (ACN)~ Moy.18.9
✗ NieB (RP) (RP)
éluant HPLC (référence absolue)LC-MS (wolny cut-off UV 190 nm)analyse des peptides
DMSO+ Bonne12.4
✗ NieN/A (N/A)
NMR (d6-DMSO)biologie cellulaire (cryoconservation)administration de médicamentssynthèse
THF~ Moy.20.3
✗ NieB (NP) (NP)
GPC/SEC (analyse des polymères)synthèse de Grignardorganométalliques
DCM (CH₂Cl₂)~ Moy.20.3
✓ TakB (NP) (NP)
extractionNP-HPLCGC-MScristallisation (anti-solvant)
Chloroform (CHCl₃)~ Moy.22.9
✓ TakN/A (toxic) (N/A)
NMR (CDCl3)extraction des lipides (méthode de Folch)NP-TLC
Hexane− Faible30.8
✓ TakA (NP) (NP)
NP-HPLCextraction des huiles (lipides)GC-MSTLC (NP)
Toluene− Faible26.6
✓ 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 57-13-6 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
Urea• urea• CAS: 57-13-6• Formule: CH4N2O• Masse: 60.06 g/molDH ScientificScience first. Commerce as consequence.N° de lot: Masse nette: Fabr.:
Deskryptory Lipinskiego (struktura)
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 57-13-6MolGod_LITHUB_MAIN
⭐ Principales découvertes (littérature scientifique) 3 publications
🏆 CAS 57-13-6 — multi-criteria ranking (W12): 30% citations · 20% actualité · 20% thème · 15% historique · 15% open access.
  1. #1
    Xiong M, Huang S, Sun J et al. (2025) · Sub-cellular biochemistry
    Pourquoi c'est important : Récente (2025) · revue
    SCORE 4.8 Revue DOI ↗ PubMed ↗
  2. #2
    Qiu Z, Jiang T, Shao G et al. (2025) · Sub-cellular biochemistry
    Pourquoi c'est important : Récente (2025) · revue
    SCORE 4 Revue DOI ↗ PubMed ↗
  3. #3
    Huang Z, Yang B (2025) · Sub-cellular biochemistry
    Pourquoi c'est important : Récente (2025) · revue
    SCORE 4 Revue DOI ↗ PubMed ↗
📈 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: -1.4 (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.

REST: /wp-json/molgod/v1/hplc/gradient/57-13-6

📐 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 ↗]
📊 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.
🧪 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.
💎 Formes cristallines / Polymorphes 1 forma w bazie MolGod_POLYMORPH_2
Forme Groupe d'espace Maille (Å, °) Densité (g/cm³) P.f. (°C) CCDC
tetragonal stable P-421m a=5.662 b=5.662 c=4.712 · α=90 β=90 γ=90 · Z=2 1.337 133.0 UREAXX12 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)
  • PUBPradhan NP; Nagrale PK; Lal B; Dhasmana Y; Chopra D; Srivastava A. 2026. "Chlorination-Enhanced H(+)/Cl(-) Co-Transport by Tyramine-Urea Conjugates." Chemistry, an Asian journal. https://doi.org/10.1002/asia.70451.
  • PUBDutta S; Dwivedi S; Haridas V. 2025. "Phenyl Urea as an Aglet for Stabilizing Trans Proline: A Mimic of Ile-Phe Zipper." Chembiochem : a European journal of chemical biology. https://doi.org/10.1002/cbic.202500476.
  • PUBIşilar Ö; Bulut A; Tombul M; Güner A; Şahin O. 2025. "Urea-sugar and thiourea-sugar diastereomers: synthesis, crystal structure and biological activities." Future medicinal chemistry. https://doi.org/10.1080/17568919.2025.2504328.
📚 Références scientifiques (Chicago Author-Date)
  1. Pradhan NP; Nagrale PK; Lal B; Dhasmana Y; Chopra D; Srivastava A. 2026. "Chlorination-Enhanced H(+)/Cl(-) Co-Transport by Tyramine-Urea Conjugates." Chemistry, an Asian journal. https://doi.org/10.1002/asia.70451. [DOI]
  2. Dutta S; Dwivedi S; Haridas V. 2025. "Phenyl Urea as an Aglet for Stabilizing Trans Proline: A Mimic of Ile-Phe Zipper." Chembiochem : a European journal of chemical biology. https://doi.org/10.1002/cbic.202500476. [DOI]
  3. Işilar Ö; Bulut A; Tombul M; Güner A; Şahin O. 2025. "Urea-sugar and thiourea-sugar diastereomers: synthesis, crystal structure and biological activities." Future medicinal chemistry. https://doi.org/10.1080/17568919.2025.2504328. [DOI]
  4. Souza JS; Giglio BM; Lobo PCB; Araújo VA; Pimentel GD. 2024. "Weak association between urea-creatinine ratio and c-reactive protein with nutritional risk in hospitalized patients with COVID-19: A cross-sectional study." Clinical nutrition ESPEN. https://doi.org/10.1016/j.clnesp.2024.07.1053. [tło tematyczne — CAS niezweryfikowany w tej publikacji] [DOI]
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. Price, Sarah L. 2014. "Predicting crystal structures of organic compounds." Chemical Society Reviews 43 (7): 2098-2111. https://doi.org/10.1039/C3CS60279F.
  11. Hann, Michael M. 2011. "Molecular Obesity, Potency and Other Addictions in Drug Discovery." MedChemComm 2 (5): 349-355.
  12. 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.
  13. Spek, Anthony L. 2009. "Structure validation in chemical crystallography." Acta Crystallographica D 65 (2): 148-155. https://doi.org/10.1107/S090744490804362X.
  14. Sheldrick, George M. 2008. "A short history of SHELX." Acta Crystallographica A 64 (1): 112-122. https://doi.org/10.1107/S0108767307043930.
  15. 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.
  16. 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.
  17. 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.
  18. Hilfiker, Rolf, ed. 2006. Polymorphism in the Pharmaceutical Industry. Weinheim: Wiley-VCH.
  19. Singhal, Dharmendra, and William Curatolo. 2004. "Drug Polymorphism and Dosage Form Design: A Practical Perspective." Advanced Drug Delivery Reviews 56 (3): 335-347.
  20. 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.
  21. 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.
  22. 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.
  23. 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.
  24. Mullin, John W. 2001. Crystallization. 4th ed. Oxford: Butterworth-Heinemann.
  25. 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.
  26. Davey, Roger J., and John Garside. 2000. From Molecules to Crystallizers: An Introduction to Crystallization. Oxford Chemistry Primer 86. Oxford: Oxford University Press.
  27. 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.
  28. Bernstein, Joel, and Anthony L. Henck. 1998. "Disappearing and Reappearing Polymorphs — An Anathema to Crystal Engineering?" Crystal Engineering 1 (2): 119-125.
  29. Threlfall, Terence L. 1995. "Analysis of organic polymorphs: a review." The Analyst 120 (10): 2435-2460. https://doi.org/10.1039/AN9952002435.
  30. 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.
  31. Bürgi, Hans-Beat, and Jack D. Dunitz, eds. 1994. Structure Correlation. 2 vols. Weinheim: VCH.
  32. Gavezzotti, Angelo. 1994. "Are crystal structures predictable?" Accounts of Chemical Research 27 (10): 309-314. https://doi.org/10.1021/ar00046a004.
  33. 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.
  34. 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.
  35. 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.
  36. 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.
  37. 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) 125 éléments

Toutes les sources scientifiques citées dans les accordéons ci-dessus pour le CAS 57-13-6. Format : Chicago Manual of Style, 17e éd., système Auteur-Date.

🗄️ Bases de données scientifiques

  1. NIST. n.d. NIST Chemistry WebBook: CAS 57-13-6. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=57-13-6.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 57-13-6. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/.
  3. PubChem. n.d. PubChem Compound Summary: CAS 57-13-6. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=57-13-6.
  4. U.S. EPA. n.d. CompTox Chemicals Dashboard: CAS 57-13-6. Research Triangle Park, NC: U.S. Environmental Protection Agency. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4021426.

📐 Normes / Lignes directrices

  1. ICH. 2003. "Stability Testing of New Drug Substances and Products: Q1A(R2)." Geneva: International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  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.
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📖 Livres

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📄 Articles scientifiques (évalués par les pairs)

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Opis

Odczynnik chemiczny do zastosowan laboratoryjnych. CAS 57-13-6.