InChI=1/C18H13N3O4/c19-9-10-24-15-5-2-13(3-6-15)20-18(23)21-14-4-7-16-12(11-14)1-8-17(22)25-16/h1-8,11H,10H2,(H2,20,21,23)/f/h20-21H 7B93DE7B65E52FB5