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 N-[2-[4-(4-methylpyrazol-1-yl)piperidin-1-yl]-2-oxoethyl]ethanesulfonamide is given. What is its corresponding molecular formula?
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C13H22N4O3S
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