• CAS Databases
• Value Added Tools
• Technical Service and Support

CAS editorial scientists build the highest quality and most up-to-date chemical databases in the world.

We review and intellectually index more than 10,000 major scientific journals, patents from 63 patent authorities, and other reputable web sources, providing pointers to the new and novel science disclosed in them.

Our information products, such as SciFinder and STN, are powerful and convenient ways to access CAS' database content.

• CAplus^SM - includes more than 35 million records from the early 1800s to the present
• CAS Registry^SM  - with more than 66 million small molecules (view latest numbers), is the gold standard for chemical substance information, including chemical structures, names, predicted and experimental properties, tags, and spectra
• CASREACT - our chemical reaction database, includes more than 55.7 million reactions and synthetic preparations
• CHEMCATS - provides access to more than 66 million commercially available chemicals from 1,056 suppliers
• CHEMLIST - our worldwide regulated chemicals database contains more than 294,000 substances
• CIN - Chemistry Industry Notes covers more than 1.68 million worldwide chemical business news citations from 1974 to the present
• MARPAT - this structure searchable database includes more than 932,000 generic Markush structures
  

We also have expert staff researchers to help you locate the information you need.