onion pentanol
SMILES:
CCC(C(C)CO)S
Aroma Description:
onion1
brothy, sweaty, leek2
Notes:
The 2R,3S enantiomer is the most potent with an odor threshold as low as 0.07 picograms/liter in air, followed by 2S,3R with a threshold of 3 pg/L. The two syn- enantiomers were not detected by smell.3
onion pentanol
SMILES:
CCC(C(C)CO)S
Aroma Description:
onionbrothy, sweaty, leek
| Receptor | Expr.% | Agonist? | Dock Score | Known agonist | Correlated Perceptual Qualities |
|---|
Dock Score is a measure of how strongly the algorithm thinks the odorant is likely to be an agonist of the receptor.
Receptors in italics are "orphans", i.e. receptors whose agonists have not been identified experimentally.
1.) The Good Scents Company
2.) leffingwell.com Chirality & Odour Perception
3.) Christopher Sabater Lüntzel, Sabine Widder, Tobias Vössing, and Wilhelm Pickenhagen. Enantioselective Syntheses and Sensory Properties of the 3-Mercapto-2-methylpentanols. J. Agric. Food Chem. 2000, 48, 424-427
4.) Franziska Noe, Johannes Polster, Christiane Geithe, Matthias Kotthoff, Peter Schieberle, and Dietmar Krautwurst OR2M3: A Highly Specific and Narrowly Tuned Human Odorant Receptor for the Sensitive Detection of Onion Key Food Odorant 3-Mercapto-2-methylpentan-1-ol Chemical Senses, 2017, Vol 42, 195–210 doi:10.1093/chemse/bjw118
5.) Haag, Franziska et al. “Copper-mediated thiol potentiation and mutagenesis-guided modeling suggest a highly conserved copper-binding motif in human OR2M3.” Cellular and molecular life sciences : CMLS vol. 77,11 (2020): 2157-2179. doi:10.1007/s00018-019-03279-y
6.) Roger Emter, Christel Merillat, Fiona Buchli, Felix Flachsmann, Andreas Natsch. Decoding human olfaction by high heterologous expression of odorant receptors detecting signature odorants. Current Biology, October 10, 2025