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