You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-cyclopropylsulfonyl-1-(2-fluoro-4-iodophenyl)-5,7-dimethylimidazo[4,5-c]pyridine-2,6-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H15FIN3O4S
assistant