NIST Chemistry WebBook

Species List

A list of all of the chemical species in this release of the NIST Chemistry WebBook can be downloaded from this page. The list is in tab-delimited format can contains the following information:

• Species name
• Species formula
• CAS registry number (if known)

Due to the size of the file, it is only available in compressed formats. Please select one of the following downloads:

• ZIP file (981 K)
• GZIP file (977 K)

The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.

CAS registry numbers are copyrighted by the American Chemical Society. Redistribution rights for CAS registry numbers are reserved by the American Chemical Society. “CAS registry” is a registered trademark of the American Chemical society.

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