modified on 5 April 2009 at 00:19 ••• 2,754 views

CAS registry number

From Drugwiki - Information about drugs, steroids and medicine

Jump to: navigation, search

CAS registry numbers, The Chemical Abstracts Service. A CAS registry number is separated by hyphens into three parts, the first consisting of up to 7 digits, the second consisting of two digits, and the third consisting of a single digit serving as a check digit.