# quaternary ammonium cation

> class of cation containing nitrogen with 4 electrically neutral substituents

**Wikidata**: [Q420401](https://www.wikidata.org/wiki/Q420401)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Quaternary_ammonium_cation)  
**Source**: https://4ort.xyz/entity/quaternary-ammonium-cation


## References

1. ChEBI release 2021-07-01
2. Gene Ontology release 2020-05-02
3. Freebase Data Dumps. 2013
4. Quora
5. Immune Epitope Database and Analysis Resource