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 methyl (E)-6-(3-fluoro-2-methylphenyl)-4-[6-(trifluoromethyl)pyridin-3-yl]hex-4-enoate is given. What is its corresponding molecular formula?
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C20H19F4NO2
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