The molecule is a glycosyloxyflavone that is kaempferol attached to a alpha-L-rhamnopyranosyl(1->2)-beta-D-galactopyranosyl 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. It has a role as a metabolite, an EC 5.99.1.2 (DNA topoisomerase) inhibitor and a plant metabolite. It is an alpha-L-rhamnoside, a beta-D-galactoside, a dihydroxyflavone and a glycosyloxyflavone. It derives from a kaempferol.
3-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2-(4-hydroxyphenyl)-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one