You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[2-(3,4-dimethoxyphenyl)ethyl]-2-[2-(dimethylamino)-2-phenylethyl]-3-ethylguanidine;hydroiodide .
user
C23H35IN4O2
assistant