# spiropyran

> any chemical compound having the pyran ring in the spiro system

**Wikidata**: [Q7578192](https://www.wikidata.org/wiki/Q7578192)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spiropyran)  
**Source**: https://4ort.xyz/entity/spiropyran


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)