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

        November/December 2016 | PatentPak Content is 
        Rapidly Expanding!    

        September/October 2016
    | Latest New STN Release
        Extends Export to Excel Support to 28 More
        Databases and Includes New Structure Search
        July/August 2016 | Incorporate PatentPak in STN 
        into your Chemical Name Search Workflow


    View or sign-up for STN News e-Newsletter

    STN Training

    Training Events
            Find Numeric Claims Limitations on STN
                 February 28, 2017, 1 p.m. ET

            STN Strategies For When You Have More 
            Answers Than Time
                 March 28, 2017, 1 p.m. EDT
    Click here to Register

    Contact Us

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