You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[N-(benzenesulfonyl)-4-chloroanilino]-N-[(E)-[4-(cyanomethoxy)phenyl]methylideneamino]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H19ClN4O4S
assistant