(+-)-Selenomethionine 1464-42-2 2-Amino-4-(methylselenyl)butyric acid 2578-28-1 Butanoic acid, 2-amino-4-(methylseleno)- Butyric acid, 2-amino-4-(methylselenyl)- CCRIS 3970 DL-Selenomethionine EINECS 215-977-0 HSDB 3564 Methionine, seleno SELENIUM METHIONINE Seleno-DL-methionine Selenomethionine Selenomethionine (van) Selenomethionine [USAN]