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system
Name the molecular formula for the molecule established as 2-ethyl-5-[[4-(2-hydroxyethyl)piperazin-1-yl]-[4-(trifluoromethyl)phenyl]methyl]-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-one using the IUPAC nomenclature.
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C20H24F3N5O2S
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