InChI=1/C13H14N2O3S/c16-12(17)4-2-10-1-3-11(14-9-10)13(18)15-5-7-19-8-6-15/h1-4,9H,5-8H2,(H,16,17)/p-1/b4-2+/fC13H13N2O3S/q-1 A9B71056C32672AF