Showing structure for 17-[(1e)-2-(2,4-dihydroxyphenyl)ethenyl]-1-(5-hydroxy-2,2-dimethylchromen-8-yl)-11-methyl-2,20-dioxapentacyclo[11.7.1.0³,⁸.0⁹,²¹.0¹⁴,¹⁹]henicosa-3,5,7,11,14,16,18-heptaene-5,15-diol