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-N-[(2,4-dichlorophenyl)methylideneamino]-4-N-(2-methylphenyl)-6-morpholin-4-yl-1,3,5-triazine-2,4-diamine ?
user
C21H21Cl2N7O
assistant