InChI=1S/C12H24N2O4S/c1-3-4-12(2,5-6-15)19-8-9(13)11(18)14-7-10(16)17/h9,15H,3-8,13H2,1-2H3,(H,14,18)(H,16,17)/t9-,12?/m0/s1