PubChem lets users search chemical information by name, molecular formula, structure and other identifiers.
ChemSpider
Search chemical structures and text records in ChemSpider, a database of more than 130 million compounds.

About ChemSpider
Search chemical structures and text records in ChemSpider, a database of more than 130 million compounds.
ChemSpider is a website in our Science Learning collection, part of the Education & Learning directory. It runs in your web browser, so there's nothing to install.
People usually find ChemSpider when they’re looking for chemistry.
Not quite what you need? Close alternatives include PubChem, Wolfram Alpha Chemistry, and ChemTube3D — compare them below.
ChemSpider at a glance
- Website
- chemspider.com
- Category
- Education & Learning › Science Learning
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Automated check blocked
- Listed
- Oct 5, 2026
ChemSpider alternatives
Tools and sites you could use instead, ranked by how closely they match.
Chemistry examples from Wolfram Alpha cover data and computations for compounds, reactions, thermodynamics, quantum chemistry, and more.
ChemTube3D teaches chemistry through interactive 3D animations of molecular structures and reactions.
The NIST Chemistry WebBook provides online property data for chemical species.
ARKIVOC provides chemistry journal content, with browsing and search for articles and conference material.
Chemistry Steps provides organic chemistry study materials, practice problems, summary sheets and multiple-choice quizzes.
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