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At CAS, we organize, analyze and share information that drives scientific discoveries.

We facilitate your research to fuel tomorrow's innovation.

Together, we will do great things.

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Our solutions empower researchers and enable discovery.


MethodsNow® is a 2017 CODiE Winner for the Best Content Search & Discovery Solution


Congratulations to the 2017 Nobel Laureates in Chemistry!


SciFinder® provides access to CAS content and delivers the information researchers 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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STN - The Choice Of Patent Experts

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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View the STN Digital Brochure


No one else has more...

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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