Quick Details
- ProName: L-Cysteine hydrochloride anhydrous
- CasNo: 52-89-1
- Molecular Formula: C3H8ClNO2S
- LimitNum: 0
Superiority
L-Cysteine Hydrochloride Anhydrous
(R)-2-Amino-3-mercaptopropionic acid monohydrochloride
C3H7NO2S·HCl:157.62
CAS No.52-89-1
Nitrogen: 8.89%
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Details
L-Cysteine Hydrochloride Anhydrous
(R)-2-Amino-3-mercaptopropionic acid monohydrochloride
C3H7NO2S·HCl:157.62
CAS No.52-89-1
Nitrogen: 8.89%
L-Cysteine Hydrochloride Anhydrous, when dried, contains not less than 98.0 percent and not more than102.0 percent of L-Cysteine Hydrochloride Anhydrous (C3H7NO2S·HCl).
Description: White crystals or crystalline powder; strongly acid taste. Very soluble in water.
Solubility (H2O, g/100g): about 102(20?C)
Identification: Compare the infrared absorption spectrum of the sample with that of the standard by potassium bromide disc method..
Specifications:
Item Limit
Specific rotation [α] 20D +5.6?to +8.9?
State of solution
(Transmittance)
Clear and colorless
Not less than 98.0%
Heavy metals (Pb) Not more than 10PPm
Arsenic (As2O3) Not more than 1PPm
Other amino acids conforms
not detection
Loss on drying Not more than1.00%
Residue on ignition
(Sulfated)
Not more than 0.10%
Assay 98.5 to 101.0%
PH 1.5 to 2.0
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Recommended storage limit and condition: Preserved in tight containers at controlled room temperature (2 year).