You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[5-bromo-2-[(2,4-dibromophenyl)methoxy]-3-nitrophenyl]methylideneamino]-2-phenylquinazolin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H17Br3N4O4
assistant