You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(2-chloropyridin-3-yl)-2-[3-[2-(4-methoxyphenyl)ethyl]-4-oxoquinazolin-2-yl]sulfanylacetamide is given. What is its corresponding molecular formula?
user
C24H21ClN4O3S
assistant