D-Cysteine hydrochloride

1.D-Cysteine 2.CAS# :32443-99-5 3.Assay:99% 4.Molecular formula:C3H7NO2S.HCI.H2O 5.Molecular weight:175.64 Our D-Cysteine is D-Cysteine hydrochloride monohydrate,white crystals or crystalline powder,freely soluble in water,slightly soluble in ethanol,with a slight smell of organic sulfide. Manufacture standard AJI97 Specific rotation[α]20D -5.5~-7.0ο Transmittance ≥98.0% Chloride 19.89~20.29% Ammonium ≤0.02% Sulfate ≤0.020% Iron ≤10ppm Heavy metals ≤10ppm Arsenic ≤1ppm Other amino acids*1 Chromatographically not detectable Loss on drying 8.5~12.0% Residue on ignition ≤0.10% Molecular formula C3H7NO2S•HCI•H2O Molecular weight 175.64 Assay 98.5~100.5% Name:D-Cysteine hydrochloride Molecular Formula:C3H7NO2S.HCl;C3H8ClNO2S Molecular Weight:157.62 CAS Registry Number:32443-99-5 EINECS:251-043-9 Specification: Product name D-Cysteine hydrochloride Item Limit Specific rotation[a]D20° +5.5°+7.0° State of solution ≥98.0% (Transmittance) Chloride(Cl) 19.8920.29% Ammonium(NH4) ≤0.02% Sulfate(SO4) ≤0.020% Iron(Fe) ≤10PPm Heavy metals(Pb) ≤10PPm Arsenic(As2O3) ≤1PPm Other amino acids Chromatographically not detectable Loss on drying 8.512.0% Residue on ignition ≤0.10% (Sulfated) Assay 99.0100.5% PH 1.52.0 • Synonyms:Cysteine,hydrochloride, D- (8CI); D-Cysteine, hydrochloride (9CI);(S)-2-Amino-3-mercaptopropanoic acid hydrochloride • Molecular Formula:C3H7 N O2 S . Cl H • Molecular Weight:157.62 • EINECS:251-043-9 • Density:g/cm3 • Melting Point:185 ºC (dec.) • Boiling Point:293.9 °C at 760 mmHg • Flash Point:131.5 °C • Risk Codes:R36/37/38 Details • Appearance:white crystalline powder • Hazard Symbols: • Safety:S26;S36