You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(3-chloro-4-cyanophenyl)-2-[4-(4-chlorophenyl)-4-methyl-2,5-dioxoimidazolidin-1-yl]acetamide is given. What is its corresponding molecular formula?
user
C19H14Cl2N4O3
assistant