Synonyms: Butanamide,2-amino-4-(methylthio)-, monohydrochloride, (2S)- (9CI);Butanamide, 2-amino-4-(methylthio)-,monohydrochloride, (S)-;Methioninamide, hydrochloride (7CI);Methioninamide,monohydrochloride, L- (8CI);L-Methionine amidehydrochloride;Methionine amide hydrochloride;