3,3',4',5,7-Pentahydroxy-8-piperidinomethylflavanone, hydrochloride 57355-30-3 8-Piperidylmethyldihydroquercetin, hydrochloride FLAVANONE, 3,3',4',5,7-PENTAHYDROXY-8-PIPERIDINOMETHYL-, HYDROCHLORIDE