Showing structure for 5,14-dihydroxy-6,15-bis(3-methylbut-2-en-1-yl)-8,17-dioxatetracyclo[8.7.0.0²,⁷.0¹¹,¹⁶]heptadeca-2,4,6,11(16),12,14-hexaene-13-carbaldehyde