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/February 2017 | 2017 Version of MEDLINE
        is Now Available    
        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

    View or sign-up for STN News e-Newsletter

    STN Training

    Training Events
            STN Strategies For When You Have More 
            Answers Than Time
                 March 28, 2017, 1 p.m. EDT

            Tips for Finding Inorganic Substance Information
             on STN
                  April 25. 2017, 1 p.m. EDT
    Click here to Register


             STN Patent Forum
             May 25, 2017
             Atlanta, Georgia

    Click here for more information

    Contact Us

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        614-447-3700 (Worldwide)
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