You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(5-chloro-2-methoxyphenyl)sulfonylamino]-N-[(3,4-dimethoxyphenyl)methyl]-3-phenylpropanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H27ClN2O6S
assistant