L-半胱氨酸盐酸盐一水物

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L-半胱氨酸盐酸盐一水物

CAS NO:7048-4-6

Chemical NameL-半胱氨酸盐酸盐一水物
Molecular Structurefa26507b5ef9f61a562436b4ea0b9a03.jpg
Molecular FormulaC3H7NO2S·HCL·H2O
Molecular Weight175.63
CharacteristicsWhite crystalline powder,tasteless,easily soluble in water but insoluble in alcohol and ether
Packing25㎏/drum,25㎏/carton
Quality  StandardAJI92/USP28/EP5/FCCIV
Specification
Specific rotation[a]D20° 

+5.5°~+7.0°

+8.0 ~+10.1°

Calc.as.cysteine
State of solutionClear and colorless
Heavy metals(Pb)≤10PPm 
Residue on ignition≤0.1%
Iron(Fe)≤10PPm
Loss on drying8.5~12.0% 
Other amino acids    Chromatographically not detectable
Arsenic(As2O3) ≤1PPm
Chloride(CI)19.89~20.29%
Ammonium(NH4)≤0.02%
Sulfate(SO4)≤0.02%
Assay99.0~100.5%
PH1.5~2.0


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