InChI=1S/C27H28O18/c28-5-11-14(31)17(34)20(37)24(43-11)13-16(33)18(35)15(32)12-8(30)4-10(42-23(12)13)6-1-2-9(7(29)3-6)44-27-22(39)19(36)21(38)25(45-27)26(40)41/h1-4,11,14,17,19-22,24-25,27-29,31-39H,5H2,(H,40,41)