You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (4R)-5-hydroxy-1-[4-(3-methoxy-4-methylphenoxy)phenyl]-4-propan-2-ylimidazolidin-2-one is given. What is its corresponding molecular formula?
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C20H24N2O4
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