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 [4-(3-chlorophenyl)piperazin-1-yl]-[1-(4-pyrimidin-2-ylpiperazin-1-yl)isoquinolin-4-yl]methanone ?
user
C28H28ClN7O
assistant