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What is the molecular formula of the compound with this IUPAC name (4-fluoro-2-naphthalen-1-ylphenyl)-(3-pyridin-2-yl-6,8-dihydro-5H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl)methanone ?
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C27H20FN5O
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