standards > identifier schema > DOI:10.25504/FAIRsharing.r7Kwy7
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ready CAS Registry Number

Abbreviation: CAS RN

General Information
Identifier used by the Chemical Abstracts Service Registry. A CAS Registry Number is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts. The right-most digit is a check digit used to verify the validity and uniqueness of the entire number.


Countries that developed this resource United States

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Knowledge Domains 

How to cite this record CAS RN; CAS Registry Number; DOI:; Last edited: June 16, 2021, 9:47 a.m.; Last accessed: Jan 17 2022 3:49 a.m.

This record is maintained by egonw  ORCID

Record added: April 17, 2019, 8:23 a.m.
Record updated: June 16, 2021, 7:13 a.m. by egonw.

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Related Databases (4)
Chemical Abstracts Service Registry
CAS (Chemical Abstracts Service) is a division of the American Chemical Society and contains databases of chemical information. CAS Registry Numbers (often referred to as CAS RNs or CAS Numbers) are universally used to provide a unique, unmistakable identifier for chemical substances. A CAS Registry Number itself has no inherent chemical significance but provides an unambiguous way to identify a chemical substance or molecular structure when there are many possible systematic, generic, proprietary or trivial names.

Free knowledge database project hosted by Wikimedia and edited by volunteers.

Signaling Pathways Project
The Signaling Pathways Project is an integrated 'omics knowledgebase based upon public, manually curated transcriptomic and cistromic (ChIP-Seq) datasets involving genetic and small molecule manipulations of cellular receptors, enzymes and transcription factors. Our goal is to create a resource where scientists can routinely generate research hypotheses or validate bench data relevant to cellular signaling pathways.

ChemTHEATRE is an online resource for browsing and analyzing curated and user-contributed data sets of environmental contaminants. ChemTHEATRE also stores metadata of the samples and of the experimental methods.

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