L-Cysteine HCL MONO CAS NO 7048-4-6
Chemical Name | L-Cysteine HCL MONO | |
Molecular Structure |
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Molecular Formula | C3H7NO2S·HCL·H2O | |
Molecular Weight | 175.63 | |
Characteristics | White crystalline powder,tasteless,easily soluble in water but insoluble in alcohol and ether | |
Packing | 25kg/drum,25kg/carton | |
Quality Standard | AJI92/USP28/EP5/FCCIV | |
Specification | ||
Specific rotation[a]D20° | +5.5°~+7.0° +8.0 ~+10.1° Calc.as.cysteine | |
State of solution | Clear and colorless | |
Heavy metals(Pb) | ≤10PPm | |
Residue on ignition | ≤0.1% | |
Iron(Fe) | ≤10PPm | |
Loss on drying | 8.5~12.0% | |
Other amino acids | Chromatographically not detectable | |
Arsenic(As2O3) | ≤1PPm | |
Chloride(CI) | 19.89~20.29% | |
Ammonium(NH4) | ≤0.02% | |
Sulfate(SO4) | ≤0.02% | |
Assay | 99.0~100.5% | |
PH | 1.5~2.0 | |
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l-cysteine hydrochloride monohydrate