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What is the molecular formula of the compound with this IUPAC name (2R)-N-(1-cyanocyclopropyl)-3-[2-(2-oxoimidazolidin-1-yl)ethylsulfonyl]-2-[[(1S)-2,2,2-trifluoro-1-(4-fluorophenyl)ethyl]amino]propanamide ?
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C20H23F4N5O4S
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