Open Reaction Database
The Open Reaction Database collects chemical reactions in a shared, structured format so they can train and test machine learning models. The goal is to improve tools that predict how reactions will behave, plan multi-step syntheses, and design experiments.
Because it draws contributions from pharma, universities, and technology companies, it aims to be a neutral, community-owned home for reaction data rather than a single lab's collection.
The database is published under CC BY-SA 4.0. You can use it commercially with attribution, but the share-alike term requires any derivative database you distribute to carry the same licence.
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