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system
Name the molecular formula for the molecule established as N-[(2S,3R)-2-[[3-(3-chloro-2-fluorophenyl)-2-fluorophenyl]methyl]-4,4-difluoro-1-(oxetane-2-carbonyl)pyrrolidin-3-yl]methanesulfinamide using the IUPAC nomenclature.
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C22H21ClF4N2O3S
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