You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[N-[(4-fluorophenyl)methyl]-N'-methylcarbamimidoyl]piperazine-1-carboxylate;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H24FIN4O2
assistant