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-3-(4-hydroxycyclohexyl)-2-[2-(5-methylthiophen-2-yl)-2-morpholin-4-ylethyl]guanidine;hydroiodide using the IUPAC nomenclature.
user
C20H35IN4O2S
assistant