InChI=1/C12H12N4O3/c1-6-4-3-5-7-8(6)12(16(2)11(19)13-7)9(17)14-10(18)15-12/h3-5H,1-2H3,(H,13,19)(H2,14,15,17,18)/p-1/t12-/m0/s1/fC12H11N4O3/h13,15H/q-1 2FF35D97FF4FED6B