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 6-[[(3R)-1-benzylpyrrolidin-3-yl]amino]-5-chloro-N-(1,3-thiazol-4-yl)pyridine-3-sulfonamide is given. What is its corresponding molecular formula?
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C19H20ClN5O2S2
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