You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[2-(dimethylamino)-2-(3-fluorophenyl)ethyl]-1-ethyl-3-[3-(2-methoxyethoxy)propyl]guanidine;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C19H34FIN4O2
assistant