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Internet HazDat - Data Dictionary


cas_id


Definition

The CAS Registry Number is a standard code used to uniquely identify a chemical substance from the Chemical Abstracts Service (CAS)Exiting the ATSDR Web Site. Registry of chemical substances. The number is in the format nnnnnn-nn-n. Some pseudo-CAS numbers may be found in HazDat to identify substances that are not found in the CAS Registry.


Examples


This page last updated on October 17, 2001

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