You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-chloro-5-fluoro-3-nitro-1,2-dihydropyridine;7-chloro-4-fluoro-1H-pyrrolo[2,3-c]pyridine;5-fluoro-3-nitro-1H-pyridin-2-one;5-fluoro-1H-pyridin-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H15Cl2F4N7O6
assistant