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 (DWPI) 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 is a single source for the information your organization needs to meet global regulatory requirements. Brought to you by CAS, curator of CAS REGISTRY℠ and the only authoritative source for CAS Registry Number® identifiers, NCI Global offers flexible search capabilities and coverage of nearly 150 regulatory inventories and lists to provide information on more than 346,000 regulated substances. Learn more
As the official research service of CAS, Science IP searches the world’s scientific and technical literature to discover answers and insight that drive confident business decisions. From an exhaustive search to a focused report, Science IP delivers results that guide innovation and ensure protection of intellectual property. 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
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