(P231)
Data type
External identifier
Statements
see [[en:w:CAS registry number]] for detailed method of numbering (English)
0 references
https://chem.nlm.nih.gov/chemidplus/rn/$1
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http://www.chemnet.com/cas/supplier.cgi?exact=dict&terms=$1
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http://commonchemistry.org/ChemicalDetail.aspx?ref=$1
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https://webbook.nist.gov/cgi/cbook.cgi?ID=C$1
0 references
[1-9]\d{1,6}-\d{2}-\d
0 references
50,000,000
7 September 2009
Constraints
[1-9]\d{1,6}-\d{2}-\d
0 references
0 references
0 references
0 references