You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-ethyl-2-[(5-ethylthiophen-2-yl)methyl]-3-(2-piperidin-1-ylethyl)guanidine;hydroiodide using the IUPAC nomenclature.
user
C17H31IN4S
assistant