InChI=1S/C28H24O17/c29-7-16(35)24-28(41)27(40,26(39)44-24)19-17(45-28)6-11(30)10-5-18(42-25(38)9-3-14(33)21(37)15(34)4-9)22(43-23(10)19)8-1-12(31)20(36)13(32)2-8/h1-4,6,16,18,22,24,29-37,40-41H,5,7H2