InChI=1/C21H12N2O6/c24-20-17-7-6-16(28-21(25)14-4-1-5-15(10-14)23(26)27)11-18(17)29-19(20)9-13-3-2-8-22-12-13/h1-12H/b19-9-	CD4E1D64D35DE393