L-Histidine monohydrate HCL

CAS NO: 5934-29-2

Specification: EP5

Product Name L-Histidine hydrochloride Monohydrate
Quality Standard EP5


Testing Items Critrion
Appearance A white, crystalline powder
State of solution Clear and not more intensely coloured than reference solution BY6
PH 3.0-5.0
Specific rotation +9.2°to +10.6º
Sulphates ≤300ppm
Ammonium(NH4) ≤200ppm
Iron(Fe) ≤10ppm
Heavy metals(Pb) ≤10ppm
Loss on drying 7.0%-10.0%
Sulphated ash ≤0.10%
Assay 98.5~101.0%


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