ChemIDplus is a web-based search system that provides access to structure and nomenclature authority files used for the identification of chemical substances cited in National Library of Medicine (NLM) databases. It also provides structure searching and direct links to many biomedical resources at NLM and on the Internet for chemicals of interest.

Prefix
chemidplus
Alternative Prefixes
ChemIDplus
Keywords
3d structure chemical compound chemical structure image/movie molecules structure
License
http://www.nlm.nih.gov/copyright.html
Links
Homepage
Publications
2002 ChemIDplus-super source for chemical and drug information
Identifier Standards
Pattern for Local Unique Identifiers

Local identifiers in ChemIDplus should match this regular expression:
^\d+\-\d+\-\d+$

Example Local Unique Identifier
57-27-2   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from ChemIDplus should match this regular expression:
^chemidplus:\d+\-\d+\-\d+$

Example CURIE
chemidplus:57-27-2
Contacts
Contact
Missing Contact
Identifier Space Owner
National Library of Medicine, MarylandROR logo
Ontology

A summary of the relations in the Bioregistry schema can be found here.

In Collection (1)
ChEBI Data Sources
Mappings to External Registries

Mappings from records in Bioregistry to external registries comprises the metaregistry. This resource has 6 mappings to external registries with 3 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext CHEMIDPLUS
EDAM EDAM Ontology logo edam 2658
Integbio Integbio logo integbio nbdc01837
Identifiers.org Identifiers.org logo miriam chemidplus
N2T Name-to-Thing logo n2t chemidplus
Prefix Commons Prefix Commons logo prefixcommons chemidplus
Providers

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 57-27-2 is used to demonstrate the providers available for ChemIDplus. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Provider Name Provider Code URI
ChemIDplus chemidplus https://chem.nlm.nih.gov/chemidplus/rn/57-27-2
Bioregistry bioregistry https://bioregistry.io/chemidplus:57-27-2
Identifiers.org miriam https://identifiers.org/chemidplus:57-27-2
Name-to-Thing n2t https://n2t.net/chemidplus:57-27-2
Extra Providers

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

Provider Name Provider Code URL
Bio2RDF bio2rdf http://bio2rdf.org/chemidplus:57-27-2