(2S)-3-mercapto-2-methylpropan-1-ol - Weaker than the (2R)-enantiomer. Although both of the enantiomers are characterized by the same broth and sweat odour, they have very different odour strength and thresholds. Odor threshold = 35-40 ppb (in water) Ref: Bouchilloux, Patricia ; Philippe Darriet, Denis Dubourdieu, Robert Henry, Sylvia Reichert, Armin Mosandl, Stereodifferentiation of 3-mercapto-2-methylpropanol in wine, Eur. Food Res. Technol., (2000) 210 :349–352

(2R)-3-mercapto-2-methylpropan-1-ol - Stronger than than the (2S)-enantiomer. Although both of the enantiomers are characterized by the same broth and sweat odour, they have very different odour strength and thresholds. Odor threshold = 3-7 ppb (in water) Ref: Bouchilloux, Patricia ; Philippe Darriet, Denis Dubourdieu, Robert Henry, Sylvia Reichert, Armin Mosandl, Stereodifferentiation of 3-mercapto-2-methylpropanol in wine, Eur. Food Res. Technol., (2000) 210 :349–352

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants