# pyrimidine base

> nucleobases containing a pyrimidine ring system

**Wikidata**: [Q4363318](https://www.wikidata.org/wiki/Q4363318)  
**Source**: https://4ort.xyz/entity/pyrimidine-base


## References

1. Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure (IUPAC Recommendations 1995)
2. ChEBI release 2021-07-01
3. Gene Ontology release 2019-11-16
4. Gene Ontology release 2020-05-02
5. [Source](http://geneontology.org/external2go/rhea2go)