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 [2-[butyl-(1,1-dioxothiolan-3-yl)amino]-2-oxoethyl] 1H-pyrazole-5-carboxylate is given. What is its corresponding molecular formula?
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C14H21N3O5S
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