You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-(2-methoxyphenyl)-N'-methyl-N-[[2-(2,2,2-trifluoroethoxy)pyridin-4-yl]methyl]piperazine-1-carboximidamide into molecular formula.
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C21H26F3N5O2
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