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DL-Histidin
HISTIDINE · free base · H-DL-HIS-OH · DL-HIS · DL-His-OH · DL-Histdine · DL-Histidin · DL-HISTIDINE
Identifikatoren & physikalische Daten
| CAS No. | 4998-57-6 |
|---|---|
| Summenformel | C6H9N3O2 |
| Durchschnittliche Molmasse | 155,15 g/mol |
| Monoisotopische Masse | 155,06947653 g/mol |
| SMILES | NC(Cc1cnc[nH]1)C(=O)O |
| InChIKey | HNDVDQJCIGZPNO-UHFFFAOYSA-N |
| PubChem CID | 773 |
| ChEBI | CHEBI:27570 |
| EC No. | 225-660-9 |
| DTXSID | DTXSID00901785 |
| Lokaler Name | DL-Histidin |
Chemische & physikalische Eigenschaften
| XLogP | -3,2 |
|---|---|
| Polarare Oberfläche (TPSA) | 92 |
| H-Brücken-Donoren | 3 |
| H-Brücken-Akzeptoren | 4 |
| Frei drehbare Bindungen | 3 |
| Schwere Atome | 11 |
| Formalladung | 0 |
| Komplexität | 151 |
| Stoffklassen | Biological Agents -> Amino Acids and Derivatives |
| Arzneimittel | Pharmaceuticals |
| Physical Description | Solid[Merck Index] White crystalline solid[Sigma-Aldrich MSDS] |
| Schmelzpunkt | 273 °C (dec.)(lit.) |
| Siedepunkt | 278.95°C (rough estimate) |
| Dichte | 1.3092 (rough estimate) |
| Brechungsindex | 1.6500 (estimate) |
| Lagerbedingungen | Keep in dark place,Inert atmosphere,Room temperature |
| Löslichkeit | 0.5 M HCl: soluble |
| Aggregatzustand | powder to crystal |
| pKa (Säurekonstante) | 1.8(at 25℃) |
| Farbe | White to Almost white |
| Merck | 14,4720 |
| BRN | 7800 |
| Hauptanwendungen | peptide synthesis |
| InChI | 1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11) |
| InChIKey | HNDVDQJCIGZPNO-UHFFFAOYSA-N |
| SMILES | NC(Cc1c[nH]cn1)C(O)=O |
| CAS Datenbank | 4998-57-6(CAS DataBase Reference) |
| EPA chemische Informationen | Histidine (4998-57-6) |
Sicherheit & Vorschriften
| GHS-Einstufung | This chemical does not meet GHS hazard criteria for 100% (2 of 2) of all reports.Not ClassifiedAggregated GHS information provided per 2 reports by companies from 1 notifications to the ECHA C&L Inventory. |
|---|---|
| Regulatorische Informationen | Chemical: DL-Histidine |
| Weitere Sicherheitsinformationen | IMAP assessments - DL-Histidine: Environment tier I assessment |
| Gefahrenübersicht | May cause irritation[Sigma-Aldrich MSDS] See Histidine. |
| Hazard Classes and Categories | Not Classified |
| Wassergefährdungsklasse (WGK) | 3 |
| TSCA-Inventar-Status | TSCA listed |
| Zollcode | 29339900 |
| R-Sätze (R) | 22-36/37/38 |
| Gefahrensymbole | Xn |
| Sicherheitshinweise (S) | 22-24/25-36/37-26 |
| Lagerklasse | 11 - Combustible Solids |
Anwendungen & Verwendung
Verwenden
DL-Histidine has been used to study the fouling behaviour of polyethersulfone ultrafiltration membranes made with different PVP (polyvinylpyrrolidone).