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Search for substances with an expansive chemistry database

Expand research interests for your institution with a state-of-the-art chemistry database 

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Quickly find properties of substances

Are you looking to query and filter chemical substances, reactions, chemical structures or bioactivity data? Designed by chemists, Reaxys is more than a fast and flexible chemistry database. It’s a cheminformatics solution that delivers chemistry facts the way chemists need them. Instead of delivering lists of references that may be relevant to a query, Reaxys strives to deliver relevant answers to you on the spot: 

  • Substances with extensive property information 

  • References ranked by relevance 

  • Reactions with experimental details 

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The world’s largest medicinal chemistry database

Over 500 million searchable experimental properties including 72 million chemical reactions.

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An exhaustive collection of literature

100 million+ literature records from 16,000 periodicals describing applications in material sciences, biomedicine, geosciences, engineering, technology, environmental sciences, pharmacology and more. 

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Over 72m reactions records

Including excerpted data on reaction conditions, solvents, catalyst and yield.

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“Reaxys has millions of reactions and molecules. In terms of coverage, it has a broader variety of reaction classes than a lot of other databases.”

Adarsh Arun


Adarsh Arun

First-year Ph.D. student at University of Cambridge, UK