You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[4-(6,7-dimethoxy-3,4-dihydro-1H-isoquinoline-2-carbonyl)phenyl]methyl]-2,5-dimethylbenzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H30N2O5S
assistant