InChI=1S/C18H28O17/c1-2-3(19)5(21)13(16(30)31-2)35-18-9(25)10(8(24)12(34-18)15(28)29)32-17-7(23)4(20)6(22)11(33-17)14(26)27/h2-13,16-25,30H,1H3,(H,26,27)(H,28,29)