The chemical Fisetin has a designated molecular formula of C15H10O6 and a molecular weight of 286.239 g/mol. Synonyms may include: C.I. 75620, 5-18-05-00291 (Beilstein Handbook Reference), C.I. Natural Brown 1, Bois bleu de Honqrie, BOIS bleude honqrie, BRN 0292829, Cotinin, 5-Desoxyquercetin, EINECS 208-434-4, Fietin, Fisetholz, Fustel (ChemID).