You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-[(2S)-butan-2-yl]-2-[(4-chlorophenyl)methyl-[2-(2,3-dimethyl-N-methylsulfonylanilino)acetyl]amino]butanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H36ClN3O4S
assistant