Showing structure for 1-ethenyl-6,13-dihydroxy-15-(7-hydroxy-2,8-dimethyl-9,10-dihydrophenanthren-3-yl)-7,13-dimethyltetracyclo[10.2.2.0²,¹¹.0³,⁸]hexadeca-2(11),3,5,7-tetraen-14-one