You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[1-[4-(cyclopropylmethoxy)-3-fluorophenyl]ethyl]-3-ethyl-2-[4-(2-methoxyethoxy)butyl]guanidine;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H37FIN3O3
assistant