You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[1-[2-[4-(diethylamino)phenyl]ethenyl]-2-ethylisoquinolin-2-ium-3-yl]ethenyl]-N,N-diethylaniline;iodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H42IN3
assistant