You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[[2-(4-chlorophenoxy)acetyl]amino]-N-[(Z)-(1,3-dimethyl-2-oxobenzimidazol-5-yl)methylideneamino]acetamide ?
user
C20H20ClN5O4
assistant