You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-2-[(5-ethyl-1,3-thiazol-2-yl)methyl]-3-(5-piperidin-1-ylpentyl)guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H36IN5S
assistant