You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-iodo-3-methoxy-N-[(Z)-(5-methoxy-2-nitro-4-phenylmethoxyphenyl)methylideneamino]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H20IN3O6
assistant