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-[4-(4-chlorophenyl)piperazin-1-yl]-4-N,4-N-dimethyl-6-N-(4-methylphenyl)pyrimidine-4,6-diamine .
user
C23H27ClN6
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