You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-fluorophenyl)-2-[N-(4-methyl-3-nitrophenyl)sulfonyl-3-(trifluoromethyl)anilino]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H17F4N3O5S
assistant