CAS Registry Services℠

CAS REGISTRY® and CAS Registry Numbers® are universal standards for definitive identification of chemical substances and relied upon worldwide by scientists and manufacturers needing authoritative information.

CAS REGISTRY® and CAS Registry Numbers® are universal standards for definitive identification of chemical substances and relied upon worldwide by scientists and manufacturers needing authoritative information.

Nomenclature and Registration

  • Get complete and reliable substance data. 
  • Request a new CAS Registry Number or match your chemical name or CAS Registry Numbers to other needed substance data.

 

Learn more about Nomenclature and Registration

Inventory Expert Service

  • Ensure accuracy of regulatory submissions.
  • Meet requirements for PMN applications by requesting CA Index Names and CAS Registry Numbers from the experts.

 

Learn more about Inventory Expert Service

Licensing CAS REGISTRY Data

  • Reliable substance data to fuel your solutions.
  • License data from CAS REGISTRY, including CAS RNs, to improve digital R&D workflows and ensure compliance for public use.