Showing structure for 3-(5-ethenyl-1-oxo-6-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl)-5-hydroxy-2-methyl-7-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}chromen-4-one