InChI=1S/C27H26O18/c1-5-12(29)13(30)16(33)26(40-5)44-19-9(41-27-17(34)14(31)15(32)22(45-27)23(35)36)4-7-11-10-6(24(37)43-21(11)19)3-8(28)18(39-2)20(10)42-25(7)38/h3-5,12-17,22,26-34H,1-2H3,(H,35,36)