| Label | Id | |
|---|---|---|
| alfentanil | http://purl.obolibrary.org/obo/CHEBI_2569 | |
| N-{1-[2-(4-ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl]-4-(methoxymethyl)piperidin-4-yl}-N-phenylpropanamide | http://purl.obolibrary.org/obo/CHEBI_2569 | |
| N-(1-(2-(4-Ethyl-5-oxo-2-tetrazolin-1-yl)ethyl)-4-(methoxymethyl)-4-piperidyl)propionanilide | http://purl.obolibrary.org/obo/CHEBI_2569 | |
| Alfentanyl | http://purl.obolibrary.org/obo/CHEBI_2569 | |
| alfentanilum | http://purl.obolibrary.org/obo/CHEBI_2569 | |
| ether | http://purl.obolibrary.org/obo/CHEBI_25698 | |
| ethers | http://purl.obolibrary.org/obo/CHEBI_25698 | |
| ommatin | http://purl.obolibrary.org/obo/CHEBI_25690 | |
| ommin | http://purl.obolibrary.org/obo/CHEBI_25691 | |
| ommochrome | http://purl.obolibrary.org/obo/CHEBI_25692 | |
| organic anion | http://purl.obolibrary.org/obo/CHEBI_25696 | |
| organic anions | http://purl.obolibrary.org/obo/CHEBI_25696 | |
| organic cation | http://purl.obolibrary.org/obo/CHEBI_25697 | |
| organic cations | http://purl.obolibrary.org/obo/CHEBI_25697 | |
| organic ion | http://purl.obolibrary.org/obo/CHEBI_25699 |