You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[(1-hydroxy-5-methoxyisoindol-2-yl)methyl]-5-(4-phenylphenyl)imidazolidine-2,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H21N3O4
assistant