Identify a large number of chemical substances:

Use this option when you can submit your substances in a computer-readable form for efficient processing. Submit your file of chemical names, CAS Registry Numbers, or MOLFILE connection tables in SDF format, and we will match it against our database of over 71 million organic and inorganic substances and more than 64 million sequences.

All requests are kept strictly confidential.

Please submit the Computer Readable Services Order Form by e-mail as a .pdf.

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Contact CAS Client Services

For more information, including prices, contact CAS Client Services in any of the following ways:

Phone: 800-631-1884 (North America)
Phone: 614-447-3870
Fax: 614-447-3747
E-mail: answers@cas.org
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