You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[(4-chlorophenoxy)methyl]-1-(3-piperidin-4-ylpropyl)indol-3-yl]-3-piperidin-3-ylpropan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H40ClN3O2
assistant