(2S)-2-amino-4-[(S)-methylsulfinyl]butanoic acid (2S)-2-amino-4-[(S)-methylsulfinyl]butyric acid L-Methionine (S)-S-oxide (2S)-2-azaniumyl-4-[(S)-methylsulfinyl]butanoate (2S)-2-ammonio-4-[(S)-methylsulfinyl]butanoate (2S)-2-ammonio-4-[(S)-methylsulfinyl]butyrate ZINC03861729