You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(4-chlorophenyl)methyl-[2-(2-fluoro-N-methylsulfonylanilino)acetyl]amino]-3-phenyl-N-propan-2-ylpropanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H31ClFN3O4S
assistant