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-pyrazol-1-yl-N-[1-(pyridin-2-ylmethyl)piperidin-3-yl]benzenesulfonamide is given. What is its corresponding molecular formula?
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C20H23N5O2S
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