InChI=1/C19H16N4O4/c1-11-6-8-12(9-7-11)21-16(24)13-4-2-3-5-15(13)20-10-14-17(25)22-19(27)23-18(14)26/h2-10,20H,1H3,(H,21,24)(H2,22,23,25,26,27)/f/h21-23H	8812873295826216