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our company is speicalized in dealing with l-cysteine HCL Anhydrous!
L-Cysteine HCL Anhydrous | CAS NO:52-89-1 |
Chemical Name | H-Cys-OH.HCl |
Structure Formula |
|
Molecular Formula |
C 3 H 7 NO 2 S.HCl.H 2 O |
Molecular Weight |
175.63 |
Cas No |
[52-89-1] |
Characteristics |
White crystalline powder; tasteless, easily soluble in water but insoluble in alcohol and ether |
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AJI92
|
USP24
|
FCC4
|
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Assay | 98.0~102.0% | 98.5~101.5% | 98.0~102.0% | ||
PH | 1.5~2.0 | ||||
Specific rotation[a]D20° | +5.6°+8.9° | +5.7°+6.8° | +5.0°+8.0° | ||
State of solution | ≥98.0% | ||||
Chloride(Cl) | |||||
Sulfate(SO 4 ) | ≤0.03% | ≤0.02% | |||
Iron(Fe) | ≤30PPm | ||||
Heavy metals(Pb) | ≤10PPm | ≤15PPm | ≤20PPm | ||
Lead(Pb) | <10mg/kg | ||||
Arsenic(As2O3) | ≤1PPm | ≤1PPm | |||
Loss on drying | ≤1.0% | ≤1.0% | ≤1.0% | ||
Residue on ignition | ≤0.1% | ≤0.4 | ≤0.1% |
PACKING;