You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 5,7-dichloro-4-[2-[(2-methoxycarbonylphenyl)methylamino]-2-oxoethoxy]naphthalene-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H19Cl2NO6
assistant