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Reaxys chemistry database

An expertly-curated chemistry database and search engine

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Search an expansive and authoritative chemical database to support your research or teaching needs

Are you looking to query and filter for chemical substance data, reactions 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.

  • Advanced chemistry search engine: Search by chemical structure or by multiple data fields

  • Check for patentability: Search the leading source of curated chemistry patents

  • Comprehensive commercial catalogs: Find up-to-date availability of commercial substances with price, purity, package size and supplier geolocation information

  • Award-winning Predictive Retrosynthesis: Combine high quality reaction data with machine learning technology

See for yourself the depth of chemical detail provided by Reaxys. Request a demonstration today.

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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