CAS Common Chemistry

Brief Overview

The CAS Common Chemistry API provides access to ~500,000 chemical substance information from the CAS REGISTRY. Example API queries include the ability to search via chemical name, SMILES, and InChI [1]. Registration is required for access [2]. CAS Common Chemistry content is CC-BY-NC 4.0 licensed; for specific reuse questions, contact CAS [3].

References

[1]

https://commonchemistry.cas.org/

[2]

https://www.cas.org/services/commonchemistry-api

[3]

https://www.cas.org/contact/commonchemistry