# orcein

> a variable mixture of chemical compounds isolated from lichens

**Wikidata**: [Q425645](https://www.wikidata.org/wiki/Q425645)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Orcein)  
**Source**: https://4ort.xyz/entity/orcein


## References

1. Orcein. ECHA Substance Infocard database
2. Medical Subject Headings
3. Freebase Data Dumps. 2013
4. UMLS 2023
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)