InChI=1/C8H8N2O3/c1-3-6-4(7(12)9-3)2-5(11)10-8(6)13/h2-3H,1H3,(H,9,12)(H2,10,11,13)/p-1/t3-/m0/s1/fC8H7N2O3/h9-10H/q-1 05EC921BC4F0870E