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    • ChemIDplus

    Metadata Updated: June 19, 2025

    ChemIDplus, the Chemical Identification Plus Database, is no longer updated. These are the final files from February 22, 2023. All ChemIDplus data have been incorporated into PubChem.

    ChemIDplus was a dictionary of over 400,000 chemicals (names, synonyms, and structures). ChemIDplus includes links to NLM and other databases and resources, including links to federal, state and international agencies. NLM makes a subset of ChemIDplus data available for download. The ChemIDplus Subset does not include the structure or the toxicity data available from the NLM web versions of the database. The ChemIDplus Subset is updated monthly.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date March 16, 2021
    Metadata Updated Date June 19, 2025

    Metadata Source

    Harvested from Healthdata.gov

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 16, 2021
    Metadata Updated Date June 19, 2025
    Publisher National Library of Medicine
    Maintainer
    Identifier https://datadiscovery.nlm.nih.gov/api/views/47ru-cshp
    Data First Published 2020-09-21
    Data Last Modified 2025-06-18
    Category Chemicals and Drugs
    Public Access Level public
    Bureau Code 009:25
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://healthdata.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 20196695-7228-4819-9ba3-75c4cbc7f625
    Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
    Harvest Source Title Healthdata.gov
    Homepage URL https://datadiscovery.nlm.nih.gov/d/47ru-cshp
    License http://opendefinition.org/licenses/odc-odbl/
    Program Code 009:041
    Source Datajson Identifier True
    Source Hash 52dc2ad3e320d7b487d7a64197fd8d9a708920e401112634cf5f3ad921509946
    Source Schema Version 1.1

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