Client Services Redirect

If you are looking for the former Client Services page, we have made some changes.

  • 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, go to the Inventory Expert Service.
     
  • For substance information identification via CAS Registry Number assignment and CA Index Name generation, go to Chemist Consultation.

Contact Us

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

Phone: 800-631-1884 (North America)
Phone: 614-447-3870
Fax: 614-447-3747
E-mail: answers@cas.org

 

Contact CAS
Let us know how we can best serve you.