# pyrazolone

> any heterocyclic compound having a five-membered ring with two nitrogen heteroatoms at 1 and 2 positions, one or two double bonds and a carbonyl group

**Wikidata**: [Q2833002](https://www.wikidata.org/wiki/Q2833002)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pyrazolone)  
**Source**: https://4ort.xyz/entity/pyrazolone


## References

1. Freebase Data Dumps. 2013
2. UMLS 2023
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)