Customer Support

Experienced searchers and scientists of the FIZ Karlsruhe helpdesk (EMEA Customer Center) provide assistance free of charge. Contact us for all questions about  our products and services, e.g. about CAS STNext^® database content, or how to develop effective search strategies.

Users in Europe should contact EMEA Customer Center
FIZ Karlsruhe - supporting CAS STN Suite products at:
Phone:  (+49) 721 95 883 155
E-mail: EMEAhelp [at] cas.org (EMEAhelp(at)cas(dot)org)

EMEA Customer Center hours of operation are from:
8.30 a.m. - 5.00 p.m. (CET) Monday - Friday

Users in North America should contact CAS Customer Center at:
(+1) 8007534227 (North America)
(+1) 6144473731 (outside North America)
E-mail: help [at] cas.org (help(at)cas(dot)org)

Helpdesk hours of operation are from:
Monday 8:00 AM through Friday 12 midnight U.S. Eastern Time

Users in Japan should contact JAICI (Japan Association for International Chemical Information)
Phone: (+81) 359783601 (Technical Service)
(+81) 359783621 (Customer Care)
Fax: (+81) 359783600
Helpdesk Page

All STNext® use is subject to the CAS STNext^®License Agreement Information Use Policies, and any applicable data use policies and restrictions set forth by third-party database producers. Some restrictions apply.

CAS Terms and Conditions

• CAS STNext^® (GVP)
• CAS STNext^® (SSVP)
• STN IP Protection Suite
• STN Information Keep & Share Program

CAS Information Use Policies

Clarivate Terms of Business

Usage Terms by Database - see also HELP USAGE terms, available in each database on STNext

To get access to CAS STNext^®, please contact the CAS STNext Support.