(S)-Penicillamine .beta.,.beta.-Dimethylcysteine 52-67-5 Artamine Cuprenil Cuprimine D-(-)-Penicillamine D-3-Mercaptovaline D-Mercaptovaline D-Penamine D-Penicillamine D-Valine, 3-mercapto- DPA Dimethylcysteine Distamine Mercaptyl Metalcaptase NSC81549 PCA Penicillamin Penicillamine Perdolat Reduced D-penicillamine Reduced penicillamine Trolovol Valine, 3-mercapto-, D- WLN: SHX1&1&YZVQ -D