Showing structure for (2r,3s,4s,5s,6r)-3,4,5-trihydroxy-6-methyloxan-2-yl (2s,3r,4s,5r,6s)-3,4,5-trihydroxy-6-{[5-hydroxy-2-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxy}oxane-2-carboxylate