You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[5,8-dimethyl-6-(4-methylphenyl)-2-piperidin-1-ylsulfonyl-3,4-dihydro-1H-isoquinolin-7-yl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H32N2O4S
assistant