You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-chloro-N-[4-[4-(3-chloro-4-methylphenyl)piperazin-1-yl]phenyl]quinolin-4-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H24Cl2N4
assistant