DL-Cysteine HCl Monohydrate
Category:
DL-Cysteine HCl Monohydrate Item Specification Appearance White crystals or crystalline powder Specific Rotation[α]D20 -1° to +1° State of solution Clear and colorless Not less than 98.0% Chloride (Cl) 19.89% to 20.29% Iron (Fe) Not more than 2ppm Heavy Metals (Pb) Not more than 10ppm Aresenic (As2O3) Not more than 1ppm Other amino aicds Chromatographically not detectable Loss on drying 8.5% to 12.0% Residue on ignition Not more than 0.10% Assay 98.5% to 100.5%
