You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(Z)-[5-chloro-3-methyl-1-[(4-methylphenyl)methyl]pyrazol-4-yl]methylideneamino]-2,5-dimethylfuran-3-carboxamide .
user
C20H21ClN4O2
assistant