You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[2-(2-chloro-5-methoxyphenyl)ethynyl]phenyl]-6-[(2-methylpropan-2-yl)oxy]pyridine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H22ClNO2
assistant