InChI=1/C17H14N4O4/c22-16-6-5-11(7-15(16)21(24)25)9-19-20-17(23)8-12-10-18-14-4-2-1-3-13(12)14/h1-7,9-10,18,22H,8H2,(H,20,23)/b19-9+/f/h20H 19192CDAD3BF3513