InChI=1S/C17H30O16S/c1-4-7(18)9(20)14(15(24)29-4)32-17-12(23)10(21)13(5(2)30-17)31-16-11(22)8(19)6(3-28-16)33-34(25,26)27/h4-24H,3H2,1-2H3,(H,25,26,27)