| Label | Id | |
|---|---|---|
| nicotianamine | http://purl.obolibrary.org/obo/CHEBI_25520 | |
| nigerans | http://purl.obolibrary.org/obo/CHEBI_25541 | |
| oxopentanoates | http://purl.obolibrary.org/obo/CHEBI_25798 | |
| oleoyl | http://purl.obolibrary.org/obo/CHEBI_25667 | |
| oxoproline | http://purl.obolibrary.org/obo/CHEBI_25801 | |
| oxopurine | http://purl.obolibrary.org/obo/CHEBI_25810 | |
| oxopurines | http://purl.obolibrary.org/obo/CHEBI_25810 | |
| oxygen | http://purl.obolibrary.org/obo/CHEBI_25805 | |
| oligoglycosylglucoses | http://purl.obolibrary.org/obo/CHEBI_25671 | |
| oligomycin | http://purl.obolibrary.org/obo/CHEBI_25675 | |
| oligomycins | http://purl.obolibrary.org/obo/CHEBI_25675 | |
| oligopeptide | http://purl.obolibrary.org/obo/CHEBI_25676 | |
| oligopeptides | http://purl.obolibrary.org/obo/CHEBI_25676 | |
| oligopeptido | http://purl.obolibrary.org/obo/CHEBI_25676 | |
| leucine | http://purl.obolibrary.org/obo/CHEBI_25017 |