You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[2-[N-(benzenesulfonyl)-3,4-dichloroanilino]acetyl]-[(4-chlorophenyl)methyl]amino]-3-phenyl-N-propylpropanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C33H32Cl3N3O4S
assistant