You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4E)-4-[(4-chlorophenyl)-hydroxymethylidene]-1-[3-(dimethylamino)propyl]-5-phenylpyrrolidine-2,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H23ClN2O3
assistant