| Label | Id | |
|---|---|---|
| pyrimidine bases | http://purl.obolibrary.org/obo/CHEBI_26432 | |
| pyrimidine nucleobase | http://purl.obolibrary.org/obo/CHEBI_26432 | |
| pyrimidine nucleobases | http://purl.obolibrary.org/obo/CHEBI_26432 | |
| a pyrimidine nucleobase | http://purl.obolibrary.org/obo/CHEBI_26432 |
