The molecule is a glycosyloxyflavone that is kaempferol attached to a alpha-L-arabinopyranosyl residue at position 3 and a alpha-L-rhamnopyranosyl residue at position 7 via glycosidic linkages. Isolated from the aerial parts of Vicia faba and Lotus edulis, it exhibits inhibitory activity against topoisomerase I and II. It has a role as a metabolite, an EC 5.99.1.2 (DNA topoisomerase) inhibitor, an EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor and a plant metabolite. It is a glycosyloxyflavone, an alpha-L-rhamnoside, an alpha-L-arabinopyranoside and a dihydroxyflavone. It derives from a kaempferol.
5-hydroxy-2-(4-hydroxyphenyl)-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-3-[(2S,3R,4S,5S)-3,4,5-trihydroxyoxan-2-yl]oxychromen-4-one