Registry PubChem Vocabulary

Suggest

The schema used by PubChem RDF

Prefix: pubchem.vocabulary
Keywords: ontology
Links: Homepage OWL Part of pubchem

Identifier Standards

Pattern for Local Unique Identifiers: Missing LUI pattern
Example Local Unique Identifier: 3D_structural_similarity Resolve
Example CURIE: pubchem.vocabulary:3D_structural_similarity

Contacts

Contact: Evan E Bolton 0000-0002-5959-6190 boltonee
Contributor: creator Charles Tapley Hoyt 0000-0003-4423-4370 cthoyt

Ontology

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

In Collection (1): Ontologies4Chem 2026

Providers

Suggest

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 3D_structural_similarity is used to demonstrate the providers available for PubChem Vocabulary. 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
PubChem Vocabulary	`pubchem.vocabulary`	https://rdf.ncbi.nlm.nih.gov/pubchem/vocabulary.owl#3D_structural_similarity
Bioregistry	`bioregistry`	https://bioregistry.io/pubchem.vocabulary:3D_structural_similarity

This name annotation was originally annotated in Bioregistry and is redistributed under the CC0-1.0 license.

Get the name:

>>> import bioregistry as br
>>> br.get_name("pubchem.vocabulary")
'PubChem Vocabulary'

Get the homepage:

>>> import bioregistry as br
>>> br.get_homepage("pubchem.vocabulary")
'https://pubchem.ncbi.nlm.nih.gov/docs/rdf-uri'

Get the OWL download link:

>>> import bioregistry as br
>>> br.get_owl_download("pubchem.vocabulary")
'https://rdf.ncbi.nlm.nih.gov/pubchem/vocabulary.owl'

Get the contact's name:

>>> import bioregistry as br
>>> br.get_contact_name("pubchem.vocabulary")
'Evan E Bolton'

Get the contact's email:

>>> import bioregistry as br
>>> br.get_contact_email("pubchem.vocabulary")
'bolton@ncbi.nlm.nih.gov'

Get the contact's GitHub handle:

>>> import bioregistry as br
>>> br.get_contact_github("pubchem.vocabulary")
'boltonee'

Get the contact's ORCiD identifier:

>>> import bioregistry as br
>>> br.get_contact_orcid("pubchem.vocabulary")
'0000-0002-5959-6190'