You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[(E)-[[2-(3,5-dichloroanilino)-2-oxoacetyl]hydrazinylidene]methyl]phenyl] 4-methylbenzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H17Cl2N3O4
assistant