InChI=1S/C12H21NO13S2/c1-4(14)12(2,20)3-5(13-26-28(21,22)23)27-25-11-8(17)6(15)7(16)9(24-11)10(18)19/h4,6-9,11,14-17,20H,3H2,1-2H3,(H,18,19)(H,21,22,23)/b13-5+