database Updated 2026-10-07

Public Chemical Database

Chemical information and their activities against biological assays. Provides free accessibility and supports research, integration and collaboration.

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Key information

Type

database

Access rights

open access

Spatial coverage

global

Chemical identifier

cas smiles inchi inchi key iupac

Domain

hazardous substances mechanism of effect

Keyword(s)

safety toxicity compound information open chemistry database health

Update frequency

weekly

LEXCES Source Schema

Title

Public Chemical Database

Abbreviation

PubChem

Description

Chemical information and their activities against biological assays. Provides free accessibility and supports research, integration and collaboration.

URL

https://pubchem.ncbi.nlm.nih.gov/

Owner

NCBI (part of NIH)

Contact email

pubchem-help@ncbi.nlm.nih.gov

Bibliographic citation

example: PubChem Identifier: CID 2244 URL: https://pubchem.ncbi.nlm.nih.gov/compound/2244

Identifiers

Chemical identifier CAS

Chemical identifier IUPAC

Chemical identifier InChi

Chemical identifier InChi Key

Chemical identifier SMILES

Added 2026-10-07 · Updated 2026-10-07