You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[3-[(3S)-4-[(3E,5E)-4,6-dichlorohepta-1,3,5-trien-2-yl]-3-methylpiperazin-1-yl]-3-oxopropyl]-5-pyridin-3-ylimidazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27Cl2N5O3
assistant