InChI=1S/C18H31NO16S2/c1-3-18(2,28)4-7(19-35-37(29,30)31)36-17-12(25)13(8(21)6(5-20)32-17)33-16-11(24)9(22)10(23)14(34-16)15(26)27/h6,8-14,16-17,20-25,28H,3-5H2,1-2H3,(H,26,27)(H,29,30,31)/b19-7+