InChI=1S/C35H26O8/c36-17-18-1-10-29-27(11-18)32(35(42-29)20-4-8-23(38)9-5-20)28-15-26(41)16-30-33(28)31(21-12-24(39)14-25(40)13-21)34(43-30)19-2-6-22(37)7-3-19/h1-17,31-32,34-35,37-41H