Showing structure for 4-methoxy-4-oxo-2-[3,7,8-trihydroxy-5-({[5-hydroxy-2,4-bis(3,4,5-trihydroxybenzoyloxy)-6-[(3,4,5-trihydroxybenzoyloxy)methyl]oxan-3-yl]oxy}carbonyl)-2-oxo-3,4-dihydro-1-benzopyran-4-yl]butanoic acid