(2S,2'S)-3,3'-Trisulfanediylbis(2-amino-3-methylbutanoic acid); Penicillamine Impurity 1

(2S,2'S)-3,3'-Trisulfanediylbis(2-amino-3-methylbutanoic acid); Penicillamine Impurity 1 · CAS 22801-32-7