(+-)-2-Amino-4-(methylseleno)butanoic acid (+-)-Selenomethionine 2578-28-1 4-04-00-03216 (Beilstein Handbook Reference) BRN 1758204 BUTYRIC ACID, 2-AMINO-4-(METHYLSELENYL)-, DL- Butanoic acid, 2-amino-4-(methylseleno)-, (+-)- (9CI) CCRIS 5850 DL-Selenomethionine Seleno-D,L-methionine