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 1-(4-chlorophenyl)-N-[(3-fluorophenyl)methylideneamino]-1-(1,3,5-triazatricyclo[3.3.1.13,7]decan-7-yl)methanimine ?
user
C21H21ClFN5
assistant