L-Cysteine Hcl Anhydrous
Standard AJI92
Structural formula: C3H7NO2SHCL
Speciific rotation[α] 20d: +5.0°-+8.0°
Tansmittance: not less than 98.0%
Chloride (Cl): not more than 0.02%
Sulfate (SO4): not more than 0.02%
Lron (Fe): not more than 10PPM
Heavy metals (Pb): not more than 10PPM
Arsenic (As2O3): not more than 1PPM
Other amino acid: Chromatographically not detectable
Residue on ignition: not more than 0.10%
Loss on drying: 1.0%
Assay: 98-102%
PH: 1.5-2.0