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system
Name the molecular formula for the molecule established as (2R,3R)-2-(2,4-difluorophenyl)-3-(4-pyrimidin-4-ylpyrazol-1-yl)-1-(1,2,4-triazol-1-yl)butan-2-ol using the IUPAC nomenclature.
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C19H17F2N7O
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