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 3-(ethylamino)-N-[(4-methyl-1,3-thiazol-5-yl)methyl]pyridine-2-sulfonamide is given. What is its corresponding molecular formula?
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C12H16N4O2S2
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