L-HISTIDINE MONOHYDROCHLORIDE MONOHYDRATE >= 99.0% (AT) (C005B-050824)

General description

L-Histidine is a hydrophilic essential amino acid that has a basic sidechain containing an imidazole group.

Biochem/physiol Actions

L-Histidine is biosynthesized from ATP, 5-phosphoribosyl-1-pyrophosphate (PRPP), and glutamine. This essential amino acid can be degraded to glutamate by histidiase, urocanase and imidazolonepropionase; it is also the precursor of histamine by action of histidine decarboxylase.

Molecular Weight: 209.63. Empirical Formula: C₆H₉N₃O₂ · HCl · H₂O. Quality Level: 100. Assay: ≥. 99.0% (AT). form: solid. optical activity: [α. ]20/D +9.5±0.5°, c :  . 5% in 5 M HCl. impurities: ≤. 0.3% foreign amino acids. mp: 254 . °C (dec.) (lit.). solubility: H₂O: 1 . g/10 mL, clear, colorless (hot). anion traces: sulfate (SO₄^2-): ≤. 100 . mg/kg. cation traces: Ca: ≤. 10 . mg/kg, Cd: ≤. 5 . mg/kg, Co: ≤. 5 . mg/kg, Cr: ≤. 5 . mg/kg, Cu: ≤. 5 . mg/kg, Fe: ≤. 5 . mg/kg, K: ≤. 50 . mg/kg, Mg: ≤. 5 . mg/kg, Mn: ≤. 5 . mg/kg, NH₄⁺: ≤. 500 . mg/kg, Na: ≤. 50 . mg/kg, Ni: ≤. 5 . mg/kg, Pb: ≤. 5 . mg/kg, Zn: ≤. 5 . mg/kg. SMILES string: O.Cl.N[C@@H](Cc1c[nH]cn1)C(O): O. InChI: 1S/C6H9N3O2.ClH.H2O/c7-5(6(10)11)1-4-2-8-3-9-4. . /h2-3,5H,1,7H2,(H,8,9)(H,10,11). 1H. 1H2/t5-. . /m0../s1. InChI key: CMXXUDSWGMGYLZ-XRIGFGBMSA-N. Pictograms: GHS07. Signal Word: Warning. Hazard Statements: H319. Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313. Hazard Classifications: Eye Irrit. 2. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable. Personal Protective Equipment: Eyeshields, Gloves, type N95 (US).