You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (4E)-4-[hydroxy-(4-methoxyphenyl)methylidene]-1-(3-methoxyphenyl)-5-(4-propan-2-yloxyphenyl)pyrrolidine-2,3-dione by IUPAC nomenclature, provide its molecular formula.
user
C28H27NO6
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