You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-(2-fluorophenoxy)-1-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]ethanone;hydrochloride by IUPAC nomenclature, provide its molecular formula.
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C14H17ClF4N2O2
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