Showing structure for 9-(hydroxymethyl)-4-{[9-(hydroxymethyl)-3,6-dimethyl-2,7-dioxo-3h,3ah,4h,5h,9ah,9bh-azuleno[4,5-b]furan-4-yl]oxy}-6-methyl-3-methylidene-3ah,4h,5h,9ah,9bh-azuleno[4,5-b]furan-2,7-dione