InChI=1S/C27H28O17/c28-6-11-14(31)17(34)19(36)23(42-11)13-16(33)24(43-27-21(38)18(35)20(37)25(44-27)26(39)40)15(32)12-9(30)5-10(41-22(12)13)7-2-1-3-8(29)4-7/h1-5,11,14,17-21,23,25,27-29,31-38H,6H2,(H,39,40)