InChI=1/C20H16N2O6/c23-15-9-18-17(27-11-28-18)8-14(15)19(24)21-10-12-3-1-4-13(7-12)22-20(25)16-5-2-6-26-16/h1-9,23H,10-11H2,(H,21,24)(H,22,25)/f/h21-22H	9561794D65825DD9