You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 4-(3-amino-4,6-dimethylthieno[2,3-b]pyridine-2-carbonyl)-N-(4-methylpyrimidin-2-yl)benzenesulfonamide into its molecular formula.
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C21H19N5O3S2
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