STN Support

STN LogoSTN Support                                     

What type of support do you need?

Contact the CAS Customer Center for all of your STN software, technical and other support needs.

In North America, contact the CAS Customer Center and STN Helpdesk by phone, email or fax.


8 a.m. - 6 p.m. Eastern Time (Monday - Friday)







1-800-753-4227 (North America)

Option 2
: General information or account-related
Option 3: Assistance with search strategies, database
content, or using a product
Option 4: Technical assistance with software setup,
installation, and configuration 

+1 614-447-3700 (outside North America)




Customers outside of North America should contact their local STN service center.


STN News - What's New on STN

    July/August, 2016 | Incorporate PatentPak in STN 
    into your Chemical Name Search Workflow
    May/June, 2016 | PIUG Highlights and Export to Excel
    now in New STN
    March/April, 2016
| CHEMLIST Updated with
    Regulation Information from Vermont

View or sign-up for STN News e-Newsletter

STN Training

Training Events
        Biotechnology Search Tips
           October 25, 2016, 1 p.m. EDT
        Polymers, Oligomers, and Oligosaccharides in
            November 29, 2016, 1 p.m. ET

        Substance and Chemical Structure Searching in
        CAS REGISTRY on New STN

            December 14, 2016, 1 p.m. ET
Click here to Register

Contact Us

E-mail   Phone & Fax   800-753-4227 (North America)
    614-447-3700 (Worldwide)
    614-447-3751 (Fax)