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