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


Getting Started

Complete User Guide

Help Files


~371 KB PDF

 ~2 MB PDF


~196 KB PDF 

~1 MB PDF 



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

       September, 2015 | PatentPak - A Time Saving
       Solution for IP Professionals - Is Coming to STN
       in Early 2016!
       July/August, 2015 | Latest New STN Release Features
       Eight New Databases Including MARPAT from CAS for
       Markush Structure Searching
       June, 2015 | CAS REGISTRY – 50 Years Strong, 100
       Million Substances Driving Your Research


    View or sign-up for STN News e-Newsletter

    STN Training

    Training Events
         PatentPak(TM) - a Time-saving Solution Coming
         Soon to STN!
          November 4, 9am EST
          November 4, 1pm EST

         Searching DWPI Polymer Indexing on new STN
          November 19, 9am EST
          November 19, 2pm EST
    Click here to Register

        STN Patent Forum
          October 12, 9:00am - 4:00pm EDT
          NE PIUG Meeting, New Brunswick NJ
    Click here to Register for the STN Patent Forum

    Contact Us

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

            Information on Chemical Supplier Program