You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (4E)-1-benzyl-4-[hydroxy-(3-propoxyphenyl)methylidene]-5-(4-iodophenyl)pyrrolidine-2,3-dione by IUPAC nomenclature, provide its molecular formula.
user
C27H24INO4
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