| Label | Id | |
|---|---|---|
| (2Z)-but-2-enoate | http://purl.obolibrary.org/obo/CHEBI_36254 | |
| (Z)-2-butenoate | http://purl.obolibrary.org/obo/CHEBI_36254 | |
| (Z)-crotonate | http://purl.obolibrary.org/obo/CHEBI_36254 | |
| cis-2-butenoate | http://purl.obolibrary.org/obo/CHEBI_36254 | |
| cis-crotonate | http://purl.obolibrary.org/obo/CHEBI_36254 | |
| isocrotonate | http://purl.obolibrary.org/obo/CHEBI_36254 |
