You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-3-[2-(4-fluorophenyl)-2-methoxyethyl]-2-(2-morpholin-4-ylpropyl)guanidine;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H32FIN4O2
assistant