Also known as Leuco-fisetinidin, (+)-leucofisetinidin
Leucofisetinidin is a flavan-3,4-diol (leucoanthocyanidin), a type of natural phenolic substance. It is the monomer of condensed tannins called profisetinidins. Those tannins can be extracted from the heartwood of Acacia mearnsii or from the heartwoods of Schinopsis balansae, Schinopsis quebrachocolorado and from commercial quebracho extract.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).