You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [1-(3-methyltriazolo[4,5-d]pyrimidin-7-yl)azetidin-3-yl]-[4-[5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
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C19H20F3N9O
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