You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-methyl-1-[4-[methyl(propan-2-yl)amino]butyl]-3-(2-piperidin-1-ylethyl)guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H38IN5
assistant