InChI=1/C18H20N4O4S/c1-27(24,25)21-13-5-7-15(16(11-13)22-9-3-2-4-10-22)20-18(23)17-8-6-14(12-19)26-17/h5-8,11,19,23H,2-4,9-10H2,1H3/p-1/fC18H19N4O4S/h19,23h,20H/q-1 9DE62631589AEDEC