InChI=1/C18H20N4O4S/c23-14-9-5-4-8-12(14)16(25)21-19-10-13-15(24)20-18(27)22(17(13)26)11-6-2-1-3-7-11/h4-5,8-11,19,23H,1-3,6-7H2,(H,21,25)(H,20,24,27)/p-1/b13-10+/fC18H19N4O4S/h21H/q-1 A82EC6244370970E