CAS Products

Whether you are an experienced information or IP professional or a student or scientist who needs current and accurate scientific information, CAS offers products designed to match your needs.


SciFinder is a research discovery application that provides unlimited access to the world's most comprehensive and authoritative source of references, substances and reactions in chemistry and related sciences.

Make better, more confident decisions knowing that you have access to the largest collection of substances, reactions, and patent and journal references produced, compiled, and updated daily by CAS scientists around the world.

Save time with an array of powerful tools to search, filter, analyze and plan that allow you to quickly find the most relevant answers to your research questions. Learn more 


Search professionals trust STN for quality content and advanced search functionality.

Trusted and relied upon by patent offices and IP professionals worldwide, STN is the premier single source for the world's disclosed scientific and technical research. It is the only platform with complete CAS content, Derwent World Patents Index® (DWPISM) and the INPADOC family of databases. The STN family of products combines industry-leading search and retrieval with unique and comprehensive content. Learn more


MethodsNow, your single source to search the largest collection of scientific methods, features step-by-step instructions for methods in areas like pharmacology, HPLC and food analysis. It saves you time with easy access to method details from hundreds of thousands of disclosed procedures, including materials, instrumentation, conditions and much more. You can even compare up to three methods side-by-side! Learn more


PatentPak is a robust patent workflow solution that offers direct access to hard-to-find chemistry in languages users know. Researchers can radically reduce the time spent locating the important chemistry in a patent. Searchable, secure, full-text patent documents are available from major patent offices around the world. PatentPak is available to organizations licensing SciFinder or classic STN, and requires payment of a separate license fee. Learn more

NCI™ Global

Trust NCI Global for the regulatory information you need whether you manufacture, import, export or transport chemicals. Rely on the experts at CAS who build and maintain the TSCA Inventory to provide you with accurate and authoritative regulatory information.

NCI Global is updated weekly with the latest regulatory information. Customers can receive weekly email alerts to get the most accurate and up-to-date information on substances of interest to make compliance reporting easier. Learn more

Science IP®

Science IP is the CAS information search service that provides fast, accurate and comprehensive searches of the world’s scientific and technical literature. Science IP can assist your organization with a variety of customized searching and competitive analysis services in the field of scientific intellectual property protection. From an exhaustive search to a focused report, Science IP ensures you will have confidence in your business decisions. Learn more


Available in SciFinder, ChemZent™ gives you a view into the early history of chemistry through the first and only indexed, searchable, English-language version of Chemisches Zentralblatt, the oldest journal of chemistry abstracts, covering the literature from 1830-1969. Learn more

Other CAS Products



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