You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3S,5R,6S)-5-(3-chlorophenyl)-6-[1-(4-chlorophenyl)-4-oxopentan-3-yl]piperidin-3-yl]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H27Cl2NO3
assistant