InChI=1/C16H18N4O4S/c1-9(2)8-20-15(24)12(14(23)18-16(20)25)7-17-19-13(22)10-3-5-11(21)6-4-10/h3-7,9,17,21H,8H2,1-2H3,(H,19,22)(H,18,23,25)/p-1/b12-7-/fC16H17N4O4S/h19H/q-1 DBCC5F6EB968DDCE