InChI=1/C11H9BrN4O3/c1-16-10(19)13-7-3-2-5(12)4-6(7)11(16)8(17)14-9(18)15-11/h2-4H,1H3,(H,13,19)(H2,14,15,17,18)/p-1/t11-/m1/s1/fC11H8BrN4O3/h13,15H/q-1 F0A0E92F4F36F52C