L-Cysteine Hydrochloride Anhydrous CAS NO: 52-89-1 C3H7NO2S.HCl L-Cysteine Hydrochloride Anhydrous CAS NO: 52-89-1Molecular FormulaC3H7NO2S.HClMolecular Weight157.6147Quality StandardAJI92 / USP28 / EP5 / FCCIVCharacteristicsWhite crystalline powder or white crystalsPacking25kg/drum,25kg/carton, double PE bags inside