InChI=1/C14H10N6O4/c15-14-17-10(9-4-2-6-24-9)11(20(22)23)12(19-14)18-13(21)8-3-1-5-16-7-8/h1-7H,(H3,15,17,18,19,21)/f/h18H,15H2 6ECFAA9418F4D3E4