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-[[2-(5-chloro-2-fluorophenyl)-5-prop-1-en-2-ylpyridin-4-yl]amino]-N-[2-(methanesulfonamido)ethyl]pyridine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C23H23ClFN5O3S
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