InChI=1/C13H10N4O3/c18-12-5-8(6-13(19)20)15-11-7-10(16-17(11)12)9-3-1-2-4-14-9/h1-5,7,15H,6H2,(H,19,20)/p-1/fC13H9N4O3/q-1 EB7F5F25B40B9D26