InChI=1/C14H13N3O4/c1-9(12-4-2-3-7-15-12)16-10-5-6-13(17(20)21)11(8-10)14(18)19/h2-9,16H,1H3,(H,18,19)/p-1/t9-/m1/s1/fC14H12N3O4/q-1 AA9231D030A1124C