InChI=1/C15H10F4N2O4/c16-9-5-6-11(13(7-9)25-8-15(17,18)19)20-14(22)10-3-1-2-4-12(10)21(23)24/h1-7H,8H2,(H,20,22)/f/h20H A5EF48AE2A15BCC2