You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-methyl-5-[1-[2-[methyl(pyridin-2-ylmethyl)amino]acetyl]pyrrolidin-2-yl]thiophene-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C19H24N4O2S
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