structural formula business number 015l molecular formula c5h11no2s molecular weight 149.21 label d-penicillamine, β-mercaptovaline, penicillamine, dimethylcysteine, penicamine, 3,3-dimethyl-d(-)-cysteine, d-penicillamine, 3,3-dimethyl-d-cysteine, 3-mercapto-d-valine, d-(−)-2-amino-3-mercapto-3-methylbutanoic acid numbering system physical property data toxicological data ecological data molecular structure data computing chemical data more properties and stability storage method synthesis method purpose numbering system cas number:52-67-5 mdl number:mfcd00064302 einecs number:200-148-8...