You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[[2-(4-chloro-3-fluorophenyl)-1-methylpyrrolidin-3-yl]methyl]-1-[4-(trifluoromethoxy)phenyl]guanidine;hydroiodide ?
user
C20H22ClF4IN4O
assistant