You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named ethane;4-propyl-N-[4-(trifluoromethoxy)cyclohepta-2,4-dien-1-yl]piperidine-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C19H31F3N2O2
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