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-(4-chloropyrazol-1-yl)-N-[(1-ethyl-3-methylpyrazol-4-yl)methyl]-2-methylpropanamide is given. What is its corresponding molecular formula?
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C14H20ClN5O
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