Product Name: H-Cys-OMe•HCl CAS#: 18598-63-5 Synonyms: L-Cysteine methyl ester hydrochloride Molecular Formula: C4H9NO2S•HCl Molecular Weight: 171.6 Manufacture time: 2011-07-15 Batch No.:20110715 Testing time: 2011-07-16 Expiry time:2013-07 Specifications: Item Standard Analysis data Appearance White powder with lumps conforms Specific rotation[α]20/D (C=10 in MeOH) -2.5º ± 1º -2.0º Water(KF) Not more than 1.0% 0.45% Assay 98.0 to102.0% 99.0%