InChI=1S/C27H32O17/c28-6-11-14(32)15(33)18(36)23(41-11)12-22-9(5-10(30)21(42-22)7-2-1-3-8(29)4-7)13(31)17(35)24(12)43-27-20(38)16(34)19(37)25(44-27)26(39)40/h1-4,10-11,14-16,18-21,23,25,27-38H,5-6H2,(H,39,40)