You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5S)-4-[(4-chlorophenyl)-hydroxymethylidene]-5-[4-(dimethylamino)phenyl]-1-[[(2S)-oxolan-2-yl]methyl]pyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H25ClN2O4
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