You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[2-[3-fluoro-4-[4-(fluoromethyl)cyclohexyl]phenyl]-1,3-dioxan-5-yl]butan-1-ol by IUPAC nomenclature, provide its molecular formula.
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C21H30F2O3
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