You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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(4E)-5-[4-(diethylamino)phenyl]-1-(3,4-difluorophenyl)-4-[hydroxy-(3-nitrophenyl)methylidene]pyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H23F2N3O5
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