l-cysteine hydrochloride monohydrate

L-Cysteine HCL MONO CAS NO 7048-4-6Chemical NameL-Cysteine HCL MONOMolecular StructureMolecular FormulaC3H7NO2S·HCL·H2OMolecular Weight175.63CharacteristicsWhite crystalline powder,tasteless,easily soluble in water but insoluble in alcohol and etherPacking25kg/drum,25kg/cartonQuality StandardAJI92/USP28/EP5/FCCIVSpecification Specific rotation[a]D20° +5.5° +7.0°+8.0 +10.1°Calc.as.cysteineState of solutionClear and colorlessHeavy metals(Pb) ≤10PPmResidue on ignition ≤0.1%Iron(Fe)≤10PPmLoss on drying 8.5 12.0%Other amino acids Chromatographically not detectableArsenic(As2O3) ≤1PPmChloride(CI) 19.89 20.29%Ammonium(NH4)≤0.02%Sulfate(SO4) ≤0.02%Assay 99.0 100.5%PH1.5 2.0