CAS is the only organization in the world whose objective is to find, collect and organize all publicly disclosed substance information.

We build and maintain the world's largest collection of molecular substances, reactions, and related content that is vital to the work of researchers.

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2014 Nobel Prize in Chemistry

CAS congratulates Eric Betzig, Stefan W. Hell and William E. Moerner, winners of the 2014 Nobel Prize in Chemistry.

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CAS and PerkinElmer collaborate to combine the power of two leading research solutions.

Latest Feature on Perovskite Solar Cells

A look at recent patenting activity in Perovskite Solar Cells

 

Guess Who's In The Top 10

Learn about the top 10 highly cited journal articles in the CAS databases.


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SciFinder provides access to CAS content and delivers the information they need to:

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With SciFinder you get:

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at your fingertips than with any other source.

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The intuitive, award-winning application offers instant access to the most comprehensive collection of chemical substance and reaction information, and to more references than any other scientific search service.

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Intellectual property professionals and patent examiners worldwide rely on STN for their scientific and technical information needs because STN delivers:

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STN provides an information advantage that empowers you to:

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A global team of scientists is continually adding substance information from the world's disclosed chemistry to the CAS REGISTRYSM, the gold standard for chemical substance information.

 

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