InChI=1/C21H16N2O4/c24-17-12-11-16(20(26)21(17)27)13-22-23-18(14-7-3-1-4-8-14)19(25)15-9-5-2-6-10-15/h1-13,24,26-27H/b22-13+,23-18+	8A948A31EEB1BC71