| Label | Id | |
|---|---|---|
| 2-hydroxy-2,4,6-cycloheptatrien-1-one | http://purl.obolibrary.org/obo/CHEBI_79966 | |
| 2-hydroxycyclohepta-2,4,6-trien-1-one | http://purl.obolibrary.org/obo/CHEBI_79966 | |
| 2-hydroxycyclohepta-2,4,6-trienone | http://purl.obolibrary.org/obo/CHEBI_79966 | |
| 2-hydroxytropone | http://purl.obolibrary.org/obo/CHEBI_79966 | |
| purpurocatechol | http://purl.obolibrary.org/obo/CHEBI_79966 | |
| tropolone | http://purl.obolibrary.org/obo/CHEBI_79966 |
