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