Showing structure for (9s,10r,11s,12s)-12-(3,5-dihydroxyphenyl)-5,7,14,16-tetrahydroxy-9,11-bis(4-hydroxyphenyl)tetracyclo[8.6.1.0³,⁸.0¹³,¹⁷]heptadeca-1(17),3,5,7,13,15-hexaen-2-one