STN Express

Migrating to CAS STNext from STN Express 

As of January 1, 2022, all STN Express users have access to the latest version of CAS STNext and are able to experience the premier scientific IP information platform. With this upgrade, users have full access to the renowned CAS Content Collection and the industry leading precision search capabilities. CAS will no longer support STN Express after April 1, 2022. 

To help STN Express users realize the full benefits and capabilities of CAS STNext, we have compiled a series of resources to guide you through the upgrade to CAS STNext.  If you have issues or questions after viewing these videos, please contact the CAS Customer Center

    Learning the CAS STNext interface

    Take a quick tour of the CAS STNext interface and learn how to access key patent search and analysis functions within CAS STNext. 


    Setting up alerts in CAS STNext

    Have CAS STNext work for you even when you are offline. Learn how to set up automated searches that regularly run to notify you of newly published information, including structure-based alerts. 


    Searching prior art with CAS STNext

    See how new CAS STNext uses Automate technology to retrieve a list of the closest prior art for a given patent based on CAplus indexing.


    Refining your CAS STNext patent search with screens

    Save time and search more effectively by applying screens to CAS STNext search results and reduce unwanted structures from your results.


    Exploring sequences with CAS STNext

    The CAS STNext sequence search module allows you to expand your search to include sequences from DGENE (Clarivate) and PATGENE as well as CAS Registry, and NCBI. 


    Understanding the CA Lexicon on CAS STNext

    The CA Lexicon organizes scientific concept families, giving researchers improved recall and precision in CAS STNext. Learn how to include the terms from the CA Lexicon including broader and narrower terms to enrich the scope of your search strategy.


    Exporting results from CAS STNext

    Learn how to build charts and visualizations by exporting search results into XML and BizInt Smart Charts.