InChI=1/C19H12N2O7/c22-14-5-4-11-12-7-15(23)16(24)8-13(12)20(17(11)18(14)25)19(26)9-2-1-3-10(6-9)21(27)28/h1-8,22-25H	4818D137D91840A2