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-(5-bromo-2-oxo-1H-pyridin-3-yl)-3-(difluoromethoxy)-5-methylthiophene-2-carboxamide is given. What is its corresponding molecular formula?
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C12H9BrF2N2O3S
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