You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[2-(3,4-difluorophenoxy)ethyl]-1-ethyl-3-[1-(5-methylpyridin-2-yl)piperidin-4-yl]guanidine;hydroiodide .
user
C22H30F2IN5O
assistant