| Label | Id | |
|---|---|---|
| 18-crown-6 ether | http://purl.obolibrary.org/obo/CHEBI_32397 | |
| 18-crown-6 | http://purl.obolibrary.org/obo/CHEBI_32397 | |
| 1,4,7,10,13,16-hexaoxacyclooctadecane | http://purl.obolibrary.org/obo/CHEBI_32397 | |
| ethylene oxide cyclic hexamer | http://purl.obolibrary.org/obo/CHEBI_32397 |