You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-2-[(1-ethylpyrrolidin-3-yl)methyl]-3-[[1-(trifluoromethylsulfonyl)piperidin-4-yl]methyl]guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H33F3IN5O2S
assistant