CAS (Chemical Abstracts Service) is a division of the American Chemical Society and is the producer of comprehensive databases of chemical information.

Prefix
cas
Alternative Prefixes
CAS_RN SECONDARY_CAS_RN CASID cas_id
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in CAS Chemical Registry should match this regular expression:
^\d{1,7}\-\d{2}\-\d$

Example Local Unique Identifier
50-00-0   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from CAS Chemical Registry should match this regular expression:
^cas:\d{1,7}\-\d{2}\-\d$

Example CURIE
cas:50-00-0
Metaregistry CAS Chemical Registry

The metaregistry provides mappings between the Bioregistry and other registries. There are 10 mappings to external registries for cas with 6 unique external prefixes.

Registry Name Metaprefix External Prefix
BioContext biocontext CAS
Chemical Information Ontology cheminf 000446
EDAM Ontology edam 1002
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.r7Kwy7
Gene Ontology Registry go CAS
HL7 External Code Systems hl7 2.16.840.1.113883.6.61
Identifiers.org Identifiers.org logo miriam cas
Name-to-Thing Name-to-Thing logo n2t cas
Prefix Commons prefixcommons cas
Wikidata Property Wikidata Property logo wikidata P231
Providers

Providers are various services that resolve CURIEs to URLs. The example CURIE cas:50-00-0 is used to demonstrate the provides available for cas. Generation of OLS and BioPortal URLs requires additional programmatic logic beyond string formatting.

Name Metaprefix URI
CAS Chemical Registry cas https://commonchemistry.cas.org/detail?ref=50-00-0
Bioregistry bioregistry https://bioregistry.io/cas:50-00-0
Identifiers.org miriam https://identifiers.org/cas:50-00-0
Name-to-Thing n2t https://n2t.net/cas:50-00-0
None scholia https://scholia.toolforge.org/cas/50-00-0
None scholia https://scholia.toolforge.org/cas/50-00-0
Extra Providers

Additional providers curated in the Bioregistry are listed here.

Code Name URL
scholia Scholia https://scholia.toolforge.org/cas/50-00-0