InChI=1/C15H12N4O4/c20-14(17-12-7-2-1-3-8-12)15(21)18-16-10-11-6-4-5-9-13(11)19(22)23/h1-10H,(H,17,20)(H,18,21)/b16-10+/f/h17-18H	149CAC5E2DDC6EA7