You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[1-[(2-chlorobenzoyl)amino]-2-(2-methoxyethylamino)-2-oxoethyl]-N-(4-methylphenyl)piperidine-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31ClN4O4
assistant