The molecule is a quercetin O-glycoside that is quercetin substituted by a alpha-6'''-caffeoylglucosyl-beta-1,2-rhamnosyl residue at position 3 via glycosidic linkage. Isolated from Sedum sarmentosum, it exhibits inhibitory activity against angiotensin-converting enzyme. It has a role as a metabolite and an EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor. It is a disaccharide derivative, a cinnamate ester and a quercetin O-glycoside. It derives from a trans-caffeic acid.
[(2R,3S,4S,5R,6S)-6-[(2S,3R,4R,5R,6S)-2-[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxochromen-3-yl]oxy-4,5-dihydroxy-6-methyloxan-3-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methyl (E)-3-(3,4-dihydroxyphenyl)prop-2-enoate