CAS Registry Number
Abbreviation: CAS number
Countries that developed this resource United States
How to cite this record FAIRsharing.org: CAS number; CAS Registry Number; DOI: https://doi.org/10.25504/FAIRsharing.r7Kwy7; Last edited: Sept. 20, 2019, 11:52 a.m.; Last accessed: Jan 23 2021 10:53 a.m.
Record added: April 17, 2019, 8:23 a.m.
Record updated: April 17, 2019, 8:35 p.m. by The FAIRsharing Team.
Edits to 'https://fairsharing.org/FAIRsharing.r7Kwy7' by 'The FAIRsharing Team' at 20:35, 17 Apr 2019 (approved): 'organizations' has been modified: Before: After: Chemical Abstracts Service, Columbus, USA|https://www.cas.org/|Maintains Added: Chemical Abstracts Service, Columbus, USA|https://www.cas.org/|Maintains Removed: 'supportLinks' has been modified: Before: After: contact form|https://www.cas.org/contact Added: contact form|https://www.cas.org/contact Removed: 'description' has been modified: Before: Identifier used by the Chemical Abstracts Service Registry. After: 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' has been modified: Before: After: United States Added: United States Removed: 'onto_domains' has been modified: Before: After: chemical entity Added: chemical entity Removed: 'contactEmail' has been modified: Before: After: email@example.com 'contact' has been modified: Before: After: CAS Helpdesk 'taxonomies' has been modified: Before: After: Not applicable Added: Not applicable Removed:
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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.
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