InChI=1/C16H11N3O4/c20-12-9-16(14(22)17-12)15(23)19(10-5-2-1-3-6-10)13(21)11-7-4-8-18(11)16/h1-8H,9H2,(H,17,20,22)/p-1/t16-/m1/s1/fC16H10N3O4/q-1 3A59836178D121BA