InChI=1/C12H12N4O3/c1-15-8-6-4-3-5-7(8)12(16(2)11(15)19)9(17)13-10(18)14-12/h3-6H,1-2H3,(H2,13,14,17,18)/p-1/t12-/m1/s1/fC12H11N4O3/h14H/q-1 E536BD13B1DB7B83