Showing structure for 2,4,6,13-tetrahydroxy-12-[(2,6,6-trimethylcyclohex-2-en-1-yl)methyl]-9,17-dioxatetracyclo[8.7.0.0³,⁸.0¹¹,¹⁶]heptadeca-1,3,5,7,10,12,15-heptaen-14-one