STN Easy   Web Access to Scientific Research and Patents

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Find the information you need in minutes!

Access STN Easy and search key STN databases covering sci-tech information and patents. Locate information on: chemistry, engineering, patents, medicine, food and agriculture, and regulatory information.

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Pay a low fee ($2.00) for each search you perform, with an additional charge for each answer you display. Invoices are mailed monthly.


Have questions or need more information? Contact CAS Customer Center.


*STN International is operated in cooperation with CAS in North America, JAICI in Japan, and FIZ Karlsruhe in Europe.

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