You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2S)-N-[(2R)-butan-2-yl]-2-[[2-(5-chloro-2-methyl-N-(4-methylphenyl)sulfonylanilino)acetyl]-[(4-methylphenyl)methyl]amino]propanamide ?
user
C31H38ClN3O4S
assistant