You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[2-(4-chlorophenyl)-2-hydroxyethyl]-3-ethyl-2-[(5-methyl-1,3-thiazol-2-yl)methyl]guanidine;hydroiodide .
user
C16H22ClIN4OS
assistant