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system
Provide the molecular formula for the IUPAC named substance (4R,5S)-5-[1-(5-chloro-2-hydroxyphenyl)-2,5-dimethylpyrrol-3-yl]-1-(3,5-dimethylphenyl)-4-pyridin-2-ylimidazolidine-2-thione .
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C28H27ClN4OS
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