| Label | Id | |
|---|---|---|
| 1,3-dioxophthalan | http://purl.obolibrary.org/obo/CHEBI_36605 | |
| 1,3-isobenzofurandione | http://purl.obolibrary.org/obo/CHEBI_36605 | |
| 1,3-phthalandione | http://purl.obolibrary.org/obo/CHEBI_36605 | |
| 1,4-Thiazan | http://purl.obolibrary.org/obo/CHEBI_36392 | |
| 1,4-benzodiazine | http://purl.obolibrary.org/obo/CHEBI_36616 | |
| 1,4-diazanaphthalene | http://purl.obolibrary.org/obo/CHEBI_36616 | |
| 1,4-dichloro-2,5-dimethoxybenzene | http://purl.obolibrary.org/obo/CHEBI_3628 | |
| 1,4-naphthyridine | http://purl.obolibrary.org/obo/CHEBI_36616 | |
| 1,4-thiazane | http://purl.obolibrary.org/obo/CHEBI_36392 | |
| 1,5-diazanaphthalene | http://purl.obolibrary.org/obo/CHEBI_36625 | |
| 1,5-naphthyridine | http://purl.obolibrary.org/obo/CHEBI_36625 | |
| 1,5-pyridopyridine | http://purl.obolibrary.org/obo/CHEBI_36625 | |
| 1,6-diazanaphthalene | http://purl.obolibrary.org/obo/CHEBI_36627 | |
| 1,6-naphthyridine | http://purl.obolibrary.org/obo/CHEBI_36627 | |
| 1,6-pyridopyridine | http://purl.obolibrary.org/obo/CHEBI_36627 |