InChI=1S/C26H26O18/c27-3-9-14(30)17(33)19(35)25(41-9)39-4-10-15(31)18(34)20(36)26(42-10)40-8-2-6-12-11-5(23(37)44-22(12)16(8)32)1-7(28)13(29)21(11)43-24(6)38/h1-2,9-10,14-15,17-20,25-36H,3-4H2