InChI=1S/C18H30O17/c19-1-3-12(7(23)9(25)16(30)31-3)33-17-11(27)8(24)13(4(2-20)32-17)34-18-10(26)5(21)6(22)14(35-18)15(28)29/h3-14,16-27,30H,1-2H2,(H,28,29)