refers to a sample that contains a high proportion of a single enantiomer, with little to no contamination from the opposite enantiomer
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(4R,5S)-1,5-Dimethyl-4-phenyl-3-(2-phenylsulfanyl-acetyl)-imidazolidin-2-one
2-Propanol, 1-[(1-methylethyl)amino]-3-phenoxy-, (R)-
