You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[1-(3,5-dichloropyridin-4-yl)ethenoxy]-3-[(Z)-2-fluoro-2-[6-(piperazin-1-ylmethyl)pyridin-3-yl]ethenyl]-2H-indazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H23Cl2FN6O
assistant