Chemical Abstracts Service
| Formation | 1907 | 
|---|---|
| Headquarters | Columbus, Ohio | 
| Location | 
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| Official language  | English | 
| President | Manuel Guzman | 
| Website | www | 
Chemical Abstracts Service (CAS) is a division of the American Chemical Society. It is a source of chemical information and is located in Columbus, Ohio, United States.