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

       January, 2016 | PatentPak Now Available in STN

       November/December, 2015 | Latest Release of 
       New STN Enhances Search Functionality,
       Workflow and Efficiency
       October, 2015 | Highlights from the PIUG 2015
       Northeast Conference


    View or sign-up for STN News e-Newsletter

    STN Training

    Training Events
           Unified Markush on New STN
             February 23, 9am EST
             February 23, 1pm EST

           Sequence Motif Searches in CAS REGISTRYSM
             March 29, 2016 1 pm EDT
    Click here to Register

    Contact Us

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

            Information on Chemical Supplier Program