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 2-chloro-N-methyl-4-methylsulfonyl-N-[4-(2-methyl-1,3-thiazol-4-yl)phenyl]benzamide is given. What is its corresponding molecular formula?
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C19H17ClN2O3S2
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