You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[3-[5-(4-chlorophenyl)pyridin-3-yl]-7-methoxyindol-1-yl]ethyl]morpholine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H26ClN3O2
assistant