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 4-[4-chloro-3-(trifluoromethyl)phenoxy]-N-ethyl-N,2,5-trimethylbenzenecarboximidamide is given. What is its corresponding molecular formula?
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C19H20ClF3N2O
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