You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(2-methoxyethoxy)butyl]-4-(2-methoxyphenyl)-N'-methylpiperazine-1-carboximidamide;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H35IN4O3
assistant