InChI=1/C15H12N4O6/c20-13(21)3-6-18-10-8-11(17-4-1-2-5-17)12(19(24)25)7-9(10)16-14(22)15(18)23/h1-2,4-5,7-8H,3,6H2,(H,16,22)(H,20,21)/p-1/fC15H11N4O6/h16H/q-1 6AC2B39C7B988D17