You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-[3-chloro-2,5-dioxo-4-[4-(trifluoromethyl)anilino]pyrrol-1-yl]benzenesulfonamide by IUPAC nomenclature, provide its molecular formula.
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C17H11ClF3N3O4S
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