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 2-N-(2-chloro-4-methoxyphenyl)-4-N-(4-methylphenyl)-6-morpholin-4-yl-1,3,5-triazine-2,4-diamine .
user
C21H23ClN6O2
assistant