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Federal dataScience & Research

PubChem®

Published by National Library of Medicine

Last updated
Not listed
Update frequency
Not listed
Formats
Web only
Coverage
Nationwide
Federal data

About this dataset

PubChem is the world’s largest collection of freely accessible information on chemical substances, including chemical names, biological activities, physical properties, safety and toxicity information, patents, and literature citations. Chemicals can be searched by name, molecular formula, structure, and other identifiers.

Files and access

Links open the official government source

Links open outside websites we do not control.

Frequently asked questions

Who publishes PubChem®?
National Library of Medicine, part of U.S. Department of Health & Human Services, publishes this dataset on Data.gov.
How do I download it?
Use the official source link above to view or request the data.

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Where this catalog comes from

Catalog checked 10/24/2026

We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.

Source: Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher

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