You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(2-fluoro-N-methylsulfonylanilino)-N-[(4-fluorophenyl)methyl]-N-[(2S)-1-oxo-1-(propan-2-ylamino)propan-2-yl]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H31F2N3O4S
assistant