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Computer Readable Services

Identify a large number of chemical substances

Use this option when you can submit your substances in 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 31 million organic and inorganic substances and more than 58 million sequences.

All requests are kept strictly confidential.

Please submit the Computer Readable Services Order Form via fax.

For more information, including prices and external use of data, you may contact CAS Client Services in any of the following ways:

• Phone: 800-631-1884
• Phone: 614-447-3870
• Fax: 614-447-3747
• E-mail: answers@cas.org