You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N,N-dimethyl-1-[3-pyridin-3-yl-6-(trifluoromethoxy)-1H-inden-2-yl]methanamine;hydrochloride by IUPAC nomenclature, provide its molecular formula.
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C18H18ClF3N2O
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