产品描述
别名: L-α-氨基-β-(4-咪唑基)丙酸 单盐酸盐
经验分子式（希尔表示法） C6H9N3O2 · HCl · H2O
分子量 209.63
Beilstein Registry Number 4168261
MDL number MFCD00151027
PubChem Substance ID 329757872
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.
L-Histidine is a hydrophilic essential amino acid that has a basic sidechain containing an imidazole group.
| Related Categories | Amino Acids, Bioactive Small Molecule Alphabetical Index, H, 生化试剂, 生物活性小分子, |
| InChI Key | CMXXUDSWGMGYLZ-XRIGFGBMSA-N |
| assay | ≥99.0% (AT) |
| 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 (SO42-): ≤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 |
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