Showing structure for 9-[16-(3,4-dihydroxyphenyl)-4,6,12-trihydroxy-8-(4-hydroxyphenyl)-15-oxatetracyclo[8.6.1.0²,⁷.0¹⁴,¹⁷]heptadeca-2,4,6,10,12,14(17)-hexaen-9-yl]-8,16-bis(4-hydroxyphenyl)-15-oxatetracyclo[8.6.1.0²,⁷.0¹⁴,¹⁷]heptadeca-2,4,6,10(17),11,13-hexaene-4,6,12-triol