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 (2,5-dichlorophenyl)-[4-[4-methyl-6-(4-methylanilino)pyrimidin-2-yl]piperazin-1-yl]methanone ?
user
C23H23Cl2N5O
assistant