| Label | Id | |
|---|---|---|
| (2E)-2-butenoate | 35899 | |
| (E)-2-butenoate | 35899 | |
| (E)-crotonate | 35899 | |
| 2-butenoate | 35899 | |
| 3-methylacrylate | 35899 | |
| Antocin II | 135899 | |
| alpha-butenoate | 35899 | |
| alpha-crotonate | 35899 | |
| antocin | 135899 | |
| beta-methacrylate | 35899 | |
| beta-methylacrylate | 35899 | |
| tractocil | 135899 | |
| tractocile | 135899 | |
| trans-2-butenoate | 35899 | |
| trans-crotonate | 35899 |