You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-acetyl-N-[2-(5-chlorothiophen-2-yl)-2-hydroxyethyl]-N'-methylpiperazine-1-carboximidamide;hydroiodide into its molecular formula.
user
C14H22ClIN4O2S
assistant