InChI=1/C16H12N6O5/c23-16(20-10-1-2-14(18-7-10)21-9-17-8-19-21)12-5-11(22(24)25)6-13-15(12)27-4-3-26-13/h1-2,5-9H,3-4H2,(H,20,23)/f/h20H C11ABF6743A6E33D