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system
Please write the molecular formula of the molecule 7-[4-(3-ethyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)-1,4-diazepan-1-yl]-5,6-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine .
user
C19H24N10
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