The IUPAC International Chemical Identifier (InChI, see MIR:00000383) is an identifier for chemical substances, and is derived solely from a structural representation of that substance. Since these can be quite unwieldly, particularly for web use, the InChIKey was developed. These are of a fixed length (25 character) and were created as a condensed, more web friendly, digital representation of the InChI.

Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in InChIKey should match this regular expression:

Example Local Unique Identifier
Pattern for CURIES

Compact URIs (CURIEs) constructed from InChIKey should match this regular expression:

Example CURIE
Metaregistry InChIKey

The metaregistry provides mappings between the Bioregistry and other registries. There are 5 mappings to external registries for this resource with 2 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext INCHIKEY logo miriam inchikey
N2T Name-to-Thing logo n2t inchikey
TogoID togoid InchiKey
Wikidata Wikidata Property logo wikidata P235

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier RYYVLZVUVIJVGH-UHFFFAOYSA-N is used to demonstrate the providers available for InChIKey. A guide for curating additional providers can be found here.

Name Metaprefix URI
InChIKey inchikey
Bioregistry bioregistry miriam
Name-to-Thing n2t
Extra Providers

Additional providers curated in the Bioregistry are listed here. These are typically inherited from or Prefix Commons, and need extra curation.

Code Name URL
scholia Scholia