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system
Name the molecular formula for the molecule established as N-[2-(4-chlorophenoxy)ethyl]-1-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidine-4-carboxamide using the IUPAC nomenclature.
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C20H20ClF3N6O2
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