InChI=1/C14H12N4O5/c1-7-8-2-3-10(19)12(21)13(8)23-14(22)9(7)4-11(20)17-18-5-15-16-6-18/h2-3,5-6,19,21H,4H2,1H3,(H,17,20)/f/h17H 113C617DA0F4C82F