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About ReactionFlash

Want to refresh your memory on named chemical reactions before an exam or a group meeting? The free ReactionFlash(R) app is a great way to learn named reactions, understand their mechanisms and view examples published in peer-reviewed literature or patents.

Designed and developed in consultation with Professor Dr. Erick M. Carreira of ETH Zürich, the app now covers over 1'000 named chemistry reactions. Professor Carreira has helped ensure that we have all the fundamental reactions that should be part of every chemist’s toolkit: from the best-known ones to the ones only Nobel Prize winners remember!

The app is designed like a set of flash cards so it can be used as a learning tool as well as a reference. Each ‘card’ shows the reaction, its mechanism and examples from peer-reviewed, published literature. It also has a quiz mode that lets you test your knowledge.

Linking into Reaxys enables you to find the most recent examples of each reaction, many with experimental details. Reaxys delivers experimental facts from the literature, enabling researchers to find the best synthetic routes and conditions. Find out more at

Download the app now and see if you know all the named reactions!

- Learn named reactions
- Review and understand mechanisms
- Explore examples published in peer-reviewed literature
- Take the ReactionFlash quiz and see how much you know

If you need support, please contact us at [email protected].

Reaxys and ReactionFlash are trade marks of Elsevier Ltd., used under license.
(c) 2021 Elsevier Ltd.

For known issues please see:

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Frequently Asked Questions(FAQ)

What is ReactionFlash?

ReactionFlash is a free app that allows users to learn about named chemical reactions, understand their mechanisms, and view examples from peer-reviewed literature or patents.

How many named chemistry reactions does ReactionFlash cover?

ReactionFlash covers over 1,000 named chemistry reactions, including both well-known reactions and those that are more obscure.

Who was involved in the development of ReactionFlash?

ReactionFlash was designed and developed in consultation with Professor Dr. Erick M. Carreira of ETH Zürich.

How is ReactionFlash designed?

ReactionFlash is designed as a set of flashcards, allowing users to learn and reference named reactions. Each flashcard includes the reaction, its mechanism, and examples from peer-reviewed literature.

Can I test my knowledge with ReactionFlash?

Yes, ReactionFlash includes a quiz mode that allows users to test their knowledge of named reactions.

Can I find recent examples of reactions using ReactionFlash?

Yes, ReactionFlash links into Reaxys, which provides the most recent examples of each reaction, often including experimental details.

How can I download ReactionFlash?

You can download ReactionFlash from the app store on your mobile device.

Where can I find support for ReactionFlash?

If you need support, you can contact us at [email protected].

What are Reaxys and ReactionFlash?

Reaxys and ReactionFlash are trademarks of Elsevier Ltd., used under license.

Where can I find known issues with ReactionFlash?

For known issues with ReactionFlash, please visit
I don't think a useful tool like this comes free but then this free app with so much knowledge base is perfect gift to any chemist. Thank you for the latest update.
Sudhir Pandey
VenuGopal B
Anhillating 😉😉
indian technology
Now I change rating 1 to 5 I am satisfied with this new update thanks you
Chem- access
They didn't even put ads in or anything, they just wanted people to have access to knowledge. 10/10.
Up to date knowledge of organic chemistry reaction.