OCRA, the Organic Chemistry Reaction App, allows you to test your knowledge of organic chemistry reaction mechanisms by solving puzzles just like the ones chemists are challenged with every day - in the classroom and at work.
Built by chemists, for chemists, the puzzles are presented in an authentic fashion, exactly the same way chemists would draw them in a lab book, on a whiteboard, or in a textbook.
With a large and growing database of puzzles, OCRA is an essential tool for learning, practicing, and reviewing chemical reaction mechanisms.
