The following resources are available to assist you with using STN Express® software.

Version Getting Started Complete User Guide Help Files
~377 KB PDF 
~4 MB PDF 
8.5 ~371 KB PDF ~2 MB PDF HTML
8.4 ~196 KB PDF  ~1 MB PDF  HTML


For information on using CAS Registry BLAST, view this PDF or click here for additional details. 


Contact CAS Customer Center for more information about STN Express.

    STN News - What's New on STN

        March/April, 2016 | CHEMLIST Updated with
        Regulation Information from Vermont

        February, 2016 | Alerts Tips and Thesauri Updates   

        January, 2016
    | PatentPak Now Available in STN

    View or sign-up for STN News e-Newsletter

    STN Training

    Training Events
           Make the Most of Patent Classification on STN
               June 28, 2016, 1 p.m. EDT

           Orientation to New STN - Bibliographic Searching
               July 26, 2016, 1 p.m. EDT
    Click here to Register

            STN Patent Forum           
              Vancouver, Washington
              May 26, 2016

    Contact Us

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


    Information on Chemical Supplier Program