| Label | Id | |
|---|---|---|
| BEO | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| (2E)-2-butenoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| (2E)-but-2-enoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| (E)-2-Butenoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| (E)-Crotonic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| (E)-but-2-enoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| 2-Butenoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| 2-butenoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| 3-methylacrylic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| Crotonic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| alpha-butenoic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| alpha-crotonic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| beta-methacrylic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| beta-methylacrylic acid | http://purl.obolibrary.org/obo/CHEBI_41131 | |
| crotonic acid | http://purl.obolibrary.org/obo/CHEBI_41131 |
