thumb|Molecular structure of the flavone backbone with numbers
via PubMed
thumb|Molecular structure of the flavone backbone with numbers
Flavones (from Latin flavus "yellow") are a class of flavonoids based on the backbone of 2-phenylchromen-4-one (2-phenyl-1-benzopyran-4-one) (as shown in the first image of this article).
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).