Client Services

CAS Client Services is a fee-based service that offers you several options for confirming and assigning CAS Registry Number® identifiers (often referred to as CAS RNs or CAS Numbers) and obtaining CA Index Names.

Inventory Expert Service

To obtain CA Index Names and assign CAS Registry Numbers for regulatory chemicals to be included on Premanufacture Notification (PMN) submissions to the U.S. EPA.

Chemist Consultation - Substance Identification

For substance information identification via CAS Registry Number assignment and CA Index Name generation

Registry Lookup Service

For confirmation of chemical names or assignment of existing CAS Registry Numbers

Computer Readable Services

For identifying large numbers of chemical substances including assignment of existing CAS Registry Numbers and retrieval of CA Index Names and CAS synonyms

CAS RN Verified Partner Program Data Submission

The CAS Registry Number (CAS RN®) Verified Partner Program is an opportunity for those using CAS Registry Numbers publicly to partner with CAS to ensure they are providing complete and accurate CAS REGISTRYSM information

Contact CAS Client Services

For more information and instructions, including prices, contact CAS Client Services in any of the following ways:

Phone: 800-631-1884 (North America)
Phone: 614-447-3870
Fax: 614-447-3747
CAS Client Services vCard 

Contact CAS Client Services

E-mail   Phone & Fax   800-631-1884 (North America)
    614-447-3870 (Worldwide)
    614-447-3747 (Fax)