Substances
As the authoritative source for chemical names, structures, and CAS Registry Numbers®, the CAS substance collection, CAS REGISTRY®, serves as a universal standard for chemists worldwide.
- 204 million organic and inorganic substances disclosed in literature since the early 1800s
- Includes alloys, coordination compounds, minerals, mixtures, polymers, and salts
- 69 million protein and nucleic acid sequences
- Enriched with experimental and predicted property data and spectra
- Updated daily