You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-[3-cyano-6-(3,4-dimethoxyphenyl)pyridin-2-yl]sulfanyl-N-[2-(trifluoromethyl)phenyl]acetamide by IUPAC nomenclature, provide its molecular formula.
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C23H18F3N3O3S
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