L-组氨酸/L-Histidine,≥99.5% (NT)
- 产品编号：H0204
- 中文名称：L-组氨酸/L-Histidine
- 英文名称：L-Histidine
- 英文别名:(S)?-?2-?Amino-?3-?(4-?imidazolyl)?propionic acid
- CAS号:71-00-1
- 分子式:C6H9N3O2
- 分子量:155.15
- 纯度:≥99.5% (NT)
- EC号:200-745-3
- MDL号:MFCD00064315
订货信息：
产品规格价格(RMB)
- H0204-10G 49
- H0204-25G 88
- H0204-100G 285
性能描述
assay ≥99.5% (NT)
optical activity [α]20/D ?39±1°, c = 2% in H2O
impurities insoluble matter, passes filter test
≤0.5% foreign amino acids
ign. residue ≤0.1% (as SO4)
loss ≤0.5% loss on drying, 110 °C
pH 7.0-8.0 (25 °C, 0.1 M in H2O)
mp 282 °C (dec.)(lit.)
~285 °C (dec.)
solubility H2O: soluble0.1 M at 20 °C, clear, colorless
Biochem/physiol Actions
Precursor of histamine by action of histidine decarboxylase.
Amino acid spacing in isotachophoresis on polyacrylamide gels - a critical evaluation; Prevents circular DNA strand cleavage in a xanthine-xanthine oxidase system; Growth requirement of various microorganisms.
