InChI=1/C11H14N2O6S/c1-6(14)9(11(16)17)13-10(15)7-2-4-8(5-3-7)20(12,18)19/h2-6,9,14H,1H3,(H,13,15)(H,16,17)(H2,12,18,19)/p-1/t6-,9+/m1/s1/fC11H13N2O6S/h13H,12H2/q-1 18DD7CA3E7B24E14