| Label | Id | |
|---|---|---|
| Mialgin | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Octafluorpropan | http://purl.obolibrary.org/obo/CHEBI_31980 | |
| Oktafluorpropan | http://purl.obolibrary.org/obo/CHEBI_31980 | |
| Operidine | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Opystan | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Pantalgine | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Perflutren | http://purl.obolibrary.org/obo/CHEBI_31980 | |
| Perlapine | http://purl.obolibrary.org/obo/CHEBI_31983 | |
| Petantin | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Petholan | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Petidin | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Petisel | http://purl.obolibrary.org/obo/CHEBI_31984 | |
| Pheneturide | http://purl.obolibrary.org/obo/CHEBI_31989 | |
| Piperocyanomazine | http://purl.obolibrary.org/obo/CHEBI_31981 | |
| Piridosal | http://purl.obolibrary.org/obo/CHEBI_31984 |