You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[3-(3,4-dimethoxyphenyl)prop-2-enoyl]phenyl]-4-(3,4-dimethylphenyl)-1H-imidazol-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H26N2O4
assistant