InChI=1/C11H9N3O4/c1-13-8(16)6-3-2-4-14(6)11(10(13)18)5-7(15)12-9(11)17/h2-4H,5H2,1H3,(H,12,15,17)/p-1/t11-/m1/s1/fC11H8N3O4/q-1 B9237408F27B3574