You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-butan-2-yl-1-[1-(4-fluorophenyl)-3,5-dimethylpyrazol-4-yl]sulfonylpiperidine-4-carboxamide into molecular formula.
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C21H29FN4O3S
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