InChI=1S/C11H18N2O6S/c1-2-5-20(19)6-8(11(17)18)13-9(14)4-3-7(12)10(15)16/h2,5,7-8H,3-4,6,12H2,1H3,(H,13,14)(H,15,16)(H,17,18)/b5-2+/t7-,8-,20?/m0/s1