Reaxys®: The Shortest Path from Q to A

Synthesis planning combined with easily searchable chemistry data, literature and reactions

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The Shortest Path from Chemistry Question to Insight

Reaxys and Reaxys Medicinal Chemistry combine experimental
chemical data and essential literature with powerful search
interfaces that provide rapid access to facts.

They return relevant extracted chemical data and
citations in response to chemistry questions.
Both can seamlessly integrate into an existing
environment of tools and systems, saving
time and reducing the risk
of inconsistencies.

The Shortest Path from Chemistry Question to Insight

Real Stories. Real Science. Real Time.

Visit the Hive and meet the biotech and pharma start-ups using Elsevier R&D solutions to solve early-stage drug discovery and development. Watch videos, read real-world case studies and learn how innovation starts with rapid results and access to crucial research in reducing costly late stage failures and mitigating risk.

Learn more about the Hive

Ask Reaxys: Intuitive Access to
Chemical Data

Ask Reaxys is an intuitive and transparent search option that interprets 'natural language' chemistry questions and retrieves the most suitable answers: chemical reactions, citations, bioactivity data and more.

Ask your chemistry questions


10 shortlisted candidates from the 2016 Reaxys Prize announced | Elsevier

10 shortlisted candidates from the 2016 Reaxys Prize announced

The ten shortlisted candidates will give oral presentations at the Reaxys Prize Symposium on 22-23 September at the New Scientist Live in London, UK. Three winners will be chosen from the finalists’ presentations and announced at the Symposium dinner.

All 45 original finalists from this year’s Prize have been invited to attend the Symposium and present their work during a poster session.

Register your interest for next year's Reaxys PhD Prize.

Learn and Understand Named Reactions - Reaxys

Learn and Understand Named Reactions

It’s now possible to learn and understand named reactions that only a Nobel Prize Winner could previously know.

The ReactionFlash app helps you learn and understand named reactions, whether famous or almost forgotten, by providing you with over 350 learn named reactions and review mechanisms.

You can also explore published examples from Reaxys and see how much knowledge you have retained by taking a fun ReactionFlash Quiz.

Download the ReactionFlash app now

What Our Customers Say

Reaxys Helps Students Apply Chemical Reaction Data

Reaxys provides chemical reaction information in such a way that researchers can use it directly in an experimental setting. Prof. Keiji Hirose, Associate Professor at Osaka University

Read the case study (PDF, 869kb)

Reaxys Delivers All the Medicinal Chemistry Data

We ... liked having the two products together in a single user interface. Reaxys and Reaxys Medicinal Chemistry are perfect for our needs — they give us medicinal chemistry data with compound synthesis and methodology information. Dr. Bel Mekonnen, CEO of Hager Biosciences

Read the case study (PDF, 698kb)

Reaxys Fact Sheet

Reaxys provides powerful search options to give researchers total control of their search, ensuring only the most relevant answers to their chemistry questions.

Download the Reaxys Fact Sheet (PDF, 1,7mb)

Reaxys Medicinal Chemistry Fact Sheet

Reaxys Medicinal Chemistry empowers hit identification and lead optimization with normalized compound–target affinity data and comprehensive pharmacokinetic, efficacy, toxicity, safety and metabolic profiles.

Download the Reaxys Medicinal Chemistry Fact Sheet (PDF, 1,2mb)