L-histidine hydrochloride / histidine hydrochloride /l-hydrochlorohydrine /l-histidine HCl

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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