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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.


Your single source to search and compare the largest collection of scientific methods!


Preserve Your Most Valuable Resource – Time

A robust new patent workflow solution available in SciFinder® and STN®.

2016 SciFinder® Future Leaders Program

Learn more about this exclusive opportunity for Ph.D. students and postdoctoral researchers from around the world.

CAS is excited to announce that PatentPakTM has won an industry impact award!



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

  • increase productivity
  • achieve faster breakthroughs
  • make better decisions

With SciFinder you get:

  • more reactions
  • more substances
  • more biomedical content

at your fingertips than with any other source.


And now PatentPakTM, a robust new patent workflow solution, offers instant access to hard-to-find chemistry in full-text patents directly in SciFinder.

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:

  • unique content collection
  • unparalleled search power
  • proven reliability

STN provides an information advantage that empowers you to:

  • answer business-critical questions
  • mitigate risks of missed information
  • protect valuable intellectual property

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.


Contact Us

E-mail   Phone & Fax   800-753-4227 (North America)
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Information on Chemical Supplier Program