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 2-[2-[(4-ethyl-2-methylphenoxy)methyl]-3-(trifluoromethyl)phenyl]-N-methyl-2-oxoacetamide is given. What is its corresponding molecular formula?
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C20H20F3NO3
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