You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 5-(5-chlorothiophen-2-yl)-1-(2-methoxyphenyl)-4-pyridin-2-ylimidazolidine-2-thione is given. What is its corresponding molecular formula?
user
C19H16ClN3OS2
assistant