# Thorotrast

> suspension containing particles of the radioactive compound thorium dioxide, that was used as a radiocontrast agent in medical radiography in the 1930s and 1940s

**Wikidata**: [Q423827](https://www.wikidata.org/wiki/Q423827)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Thorotrast)  
**Source**: https://4ort.xyz/entity/thorotrast


## References

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