InChI=1/C18H15N4O4S/c1-26-18-11-10-17(20-21-18)22-27(24,25)15-8-6-14(7-9-15)19-12-13-4-2-3-5-16(13)23/h2-12H,1H3,(H-,19,20,22,23)/q-1/f/h23H FD9068D906F336B7