You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-N-[(E)-1-[3-[(3,4-dimethoxybenzoyl)amino]phenyl]ethylideneamino]benzene-1,4-dicarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H24N4O5
assistant