You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[4-[3-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]propoxy]phenyl]-7-methoxy-2-methylisoquinolin-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H36N2O5
assistant