You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[4-[3-(trifluoromethyl)phenyl]piperazin-1-yl]-1-(3,4,5-trimethoxyphenyl)propan-1-one by IUPAC nomenclature, provide its molecular formula.
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C23H27F3N2O4
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