L-histidine hydrochloride / histidine hydrochloride /l-hydrochlorohydrine /l-histidine HCl
CAS No.： 645-35-2
Item No.： AA0106
Store at： RT
Item No.： AA0106
Store at： RT
English Name: L-histidine HCl; L-Histidine hydrochloride
Other names: histidine hydrochloride; L-hydrochlorohydrine
CAS No.: 645-35-2
C6H9N3O2?HCl =191.62
Grade: br
Content: ≥ 99.0%
Specific rotation: +8.9 o ~ +9.5 o
PH：3.5～4.5
Chloride: 16.66 ~ 17.08%
Ammonium salt: ≤ 0.02%
Sulfate: ≤ 0.02%
Iron salt: ≤ 10ppm
Heavy metals: ≤ 10ppm
Arsenic salt: ≤ 1ppm
Loss on drying: ≤ 0.20%
Burning residue: ≤ 0.10%
Physicochemical properties: white crystal or crystalline powder, odorless, slightly bitter and sour. Soluble in formic acid, soluble in water, insoluble in ethanol and ether
Purpose: biochemical research. Histamine's precursor depends on histidine decarboxylase
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