Showing structure for methyl 1,4,8-trihydroxy-7-[5-hydroxy-2-(methoxycarbonyl)-2-(3-methyl-5-oxooxolan-2-yl)-4-oxo-3h-1-benzopyran-6-yl]-3-methyl-9-oxo-4,9a-dihydro-3h-xanthene-4a-carboxylate