You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-(2,5-dimethylpyrazol-3-yl)sulfonyl-1-(5-fluoropyridin-2-yl)-2-methylpiperazine is given. What is its corresponding molecular formula?
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C15H20FN5O2S
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