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-(4-chloro-2-methyl-N-(4-methylphenyl)sulfonylanilino)-N-[(E)-(2-nitrophenyl)methylideneamino]acetamide is given. What is its corresponding molecular formula?
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C23H21ClN4O5S
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