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Chemical Abstracts Service Number (view source)
Revision as of 18:03, September 17, 2007
, 18:03, September 17, 2007CAS numbers moved to Chemical Abstracts Service Number: proper name
A '''Chemical Abstracts Service number''' (CAS number) is a number which is used to identify each unique chemical compound, polymer, biological sequence, mixture and alloy.
The [[Chemical Abstracts Service]], a division of the [[American Chemical Society]], assigns unique identifiers to every different chemical. Most molecule databases today permit searching for a compound by entering its CAS number. There are over 30 million CAS numbers as of May 2007.
[[Category:Chemistry]]