| Label | Id | |
|---|---|---|
| 2-oxo-2H-pyran | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| 2-pyranone | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| 2-pyrone | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| 2H-pyran-2-one | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| alpha-pyrone | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| coumalin | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| pyran-2-one | http://purl.obolibrary.org/obo/CHEBI_37965 | |
| 5-hydroxy-2,4-pentadienoic acid delta-lactone | http://purl.obolibrary.org/obo/CHEBI_37965 |
