Showing structure for 4-{[(2s,3r,4s,5s,6r)-4,5-dihydroxy-6-(hydroxymethyl)-2-(3,4,5-trihydroxybenzoyloxy)oxan-3-yl]oxy}-3-(3-formyl-5,6,7-trihydroxy-1-oxoisochromen-4-yl)-4-oxobutanoic acid