InChI=1/C18H14N4O6/c23-11(5-6-12(24)25)20-13-8-3-1-2-4-9(8)14-15(13)22-7-10(18(27)28)19-16(22)17(26)21-14/h1-4,7,13H,5-6H2,(H,20,23)(H,21,26)(H,24,25)(H,27,28)/p-3/t13-/m0/s1/fC18H11N4O6/h20H/q-3 F12BB020FA200072