You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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3-(4-chloro-3-fluorophenoxy)-1-[4,4-difluoro-2-(hydroxymethyl)pyrrolidin-1-yl]propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
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C14H15ClF3NO3
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