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 4-tert-butyl-N-[5-chloro-2-(4-chlorobenzoyl)pyridin-3-yl]benzenesulfonamide is given. What is its corresponding molecular formula?
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C22H20Cl2N2O3S
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