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
CASID CAS_RN SECONDARY_CAS_RN 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

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

Registry Name Metaprefix External Prefix
Gene Ontology Registry go CAS
Identifiers.org miriam cas
Name-to-Thing n2t cas
Prefix Commons prefixcommons CAS
Scholia scholia cas
Wikidata Property 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
Scholia 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