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-chlorophenyl)methyl]-2-[2-(2-chlorophenyl)-1,3-thiazol-4-yl]-N-methylacetamide is given. What is its corresponding molecular formula?
user
C19H16Cl2N2OS
assistant