You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-[(Z)-[3-[2-(5-chloro-2-methylanilino)-2-oxoethoxy]phenyl]methylideneamino]-N-(3-methylphenyl)oxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H23ClN4O4
assistant