CAS is a division of the American Chemical Society and the world's most authoritative source of chemical substance information. CAS provides the most comprehensive databases of disclosed research in chemistry and related sciences, including the world's largest collection of disclosed substance information, the CAS REGISTRY^SM.

• CAS makes this information available to researchers through SciFinder© and STN©, the pre-eminent search and retrieval tools for scientists and information professionals.

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• CAS databases, updated daily, include the CAS REGISTRY^SM with more than 48 million substances and CAS Registry Number© identifiers, CAplus^SM with indexed references from more than 10,000 major scientific journals and 59 patent authorities around the world, and CASREACT© with more than 18 million single- and multi-step reactions.

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• SciFinder©: Part of the Process™ is the leading chemical synthesis research discovery tool that allows scientists to quickly explore the CAS databases for scientific information in journal and patent literature from around the world!

  • SciFinder Podcasts explore a vast array of current interest topics and new discoveries in the 21st century.

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  • Linking with ACS Publications allows SciFinder subscribers to easily link from ACS Publications to the corresponding reference detail, as well as substance or reaction information found in the CAS databases.

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  • ACS Retired and Emeritus Member SciFinder Task Package Program offers ACS retired and emeritus members the option to continue to access SciFinder through a special task package program for eligible members.

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• STN© is the premier online scientific and technical information service. For more than 25 years, searchers in commercial, government, and academic settings have used STN to access high-quality, sci-tech databases.

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  • STN Training Calendar is designed to give STN customers the ability to quickly view, in one convenient location, all STN North American instructor-led training and e-learning opportunities.

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• Common Chemistry™ is a free, web-based resource that provides information on approximately 7,800 chemicals of widespread and general interest, as well as all 118 elements from the periodic table.

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• CAS - Science Connections is a series of articles that showcases the value of CAS databases in light of important general-interest, science, and technology news.

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