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system
Name the molecular formula for the molecule established as N-(1-methyl-8aH-[1,2,4]triazolo[1,5-a]pyridin-7-yl)-2-[3-(4-methylpiperidin-1-yl)-6-oxopyridazin-1-yl]acetamide using the IUPAC nomenclature.
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C19H25N7O2
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