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system
Name the molecular formula for the molecule established as 1-ethyl-2-[[1-(4-methoxyphenyl)pyrazol-3-yl]methyl]-3-([1,2,4]triazolo[4,3-a]pyridin-3-ylmethyl)guanidine using the IUPAC nomenclature.
user
C21H24N8O
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