| l-butyric aci |
| (l)-ethionine |
| 2-amino-4-(ethylthio)butyric acid |
| alpha-amino-gamma-(ethylmercapto)butyric acid |
| 2-amino-4-(ethylthio)-butanoic aci |
| eth |
| ethionine |
| homocysteine s-ethyl ether |
| s-ethyl-homocystein |
| l-2-amino-4-(ethylthio)butyric acid |
| l-ethionine |
| s-ethyl-l-homocystein |
| l-s-ethylhomocysteine |
