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-methyl-N-[2-[(4-methylphenyl)sulfonylhydrazinylidene]ethylideneamino]benzenesulfonamide is given. What is its corresponding molecular formula?
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C16H18N4O4S2
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