You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[1-(4-fluoro-2-methylphenyl)piperidin-3-yl]-2-methyl-3-[2-(6-methylpyridin-3-yl)ethyl]guanidine;hydroiodide into its molecular formula.
user
C22H31FIN5
assistant