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system
Name the molecular formula for the molecule established as 1-ethyl-4-[[3-(pyridin-3-ylmethyl)-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]methyl]pyrrole-2-carbonitrile using the IUPAC nomenclature.
user
C20H23N7
assistant