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 1-[2-[[3,5-bis(trifluoromethyl)phenyl]methoxy]phenyl]-N-methyl-N-[2-(2H-tetrazol-5-yl)ethyl]ethanamine is given. What is its corresponding molecular formula?
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C21H21F6N5O
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