InChI=1/C14H9N3O3/c18-13-12-15-9(14(19)20)6-17(12)10-5-7-3-1-2-4-8(7)11(10)16-13/h1-4,6H,5H2,(H,16,18)(H,19,20)/p-2/fC14H7N3O3/q-2 A1AAB3D7EE7573CD