Table 1.
Odorant exposures in this study1. Exposures are listed in the order illustrated.
| Odorant | CAS# | Vendor | Purity (%) |
Solvent | Solvent dilution |
Air dilution |
ppm | n |
|---|---|---|---|---|---|---|---|---|
| 2-Heptanone2 | 110-43-0 | Acros | 98 | None | None | 1/29 | 180 | 5 |
| Ethyl butyrate2 | 105-54-4 | Acros | 99 | None | None | 1/220 | 75 | 5 |
| Ethyl acetoacetate | 141-97-9 | Acros | > 99 | None | None | 1/8 | 100 | 4 |
| Methyl valerate3 | 624-24-8 | Acros | 99 | None | None | 1/50 | 260 | 3 |
| Methyl levulinate | 624-45-3 | Fluka | > 98 | None | None | 1/8 | 170 | 4 |
| 2-Hexanone3 | 591-78-6 | Acros | 98 | None | None | 1/60 | 170 | 3 |
| Propyl acetate2 | 109-60-4 | Acros | 97 | None | None | 1/600 | 75 | 5 |
| Acetoxyacetone | 592-20-1 | TCI | > 97 | None | None | 1/8 | 160 | 4 |
| 2-Butanone | 78-93-3 | Acros | > 99 | None | None | 1/48 | 2500 | 3 |
| Butanedione | 431-03-8 | Acros | 99 | None | None | 1/30 | 2500 | 4 |
| 2-Hexanone | 591-78-6 | Aldrich | 98 | None | None | 1/43 | 250 | 4 |
| 2,5-Hexanedione | 110-13-4 | Acros | 97 | None | None | 1/15 | 250 | 4 |
| 3-Hexanone | 589-38-8 | Acros | 98 | None | None | 1/58 | 250 | 4 |
| 3,4-Hexanedione | 4437-51-8 | Acros | 96 | None | None | 1/15 | 250 | 4 |
| 2,3-Hexanedione | 3848-24-6 | Aldrich | 90 | None | None | 1/15 | 250 | 4 |
| Ethyl caproate | 123-66-0 | Acros | > 99 | None | None | 1/21 | 75 | 3 |
| Diethyl malonate | 105-53-3 | Acros | > 99 | None | None | 1/12 | 16 | 3 |
| Ethyl heptanoate | 106-30-9 | Acros | 99 | None | None | 1/12 | 75 | 3 |
| Diethyl succinate | 123-25-1 | Acros | 99 | None | None | 1/12 | 3 | 3 |
| Ethyl valerate | 539-82-2 | Acros | 99 | None | None | 1/84 | 75 | 3 |
| Diethyl oxalate | 95-92-1 | Acros | 99 | None | None | 1/12 | 26 | 3 |
| 1-Butanol | 71-36-3 | Acros | > 99 | None | None | 1/8 | 1100 | 3 |
| Methyl acetate | 79-20-9 | Acros | 99 | None | None | 1/1100 | 250 | 3 |
| Methyl glycolate | 96-35-5 | Acros | 98 | None | None | 1/33 | 12 | 3 |
| Valeric acid | 109-52-4 | Acros | 99 | Mineral oil | 1/20 | 1/10 | nd | 5 |
| Ethyl propionate | 105-37-3 | Aldrich | 99 | Mineral oil | 1/20 | 1/10 | nd | 5 |
| Monoethyl malonate | 1071-46-1 | Aldrich | 90 | Mineral oil | 1/20 | 1/10 | nd | 5 |
| 2-Butanol | 78-92-2 | Aldrich | > 99 | None | None | 1/96 | 200 | 5 |
| 2-Butanone | 78-93-3 | Aldrich | > 99 | None | None | 1/600 | 200 | 5 |
| Acetoin | 513-86-0 | Aldrich | > 92 | None | None | 1/9 | 200 | 5 |
| Butyric acid | 107-92-6 | Acros | > 99 | Mineral oil | 1/20 | 1/10 | nd | 5 |
| 2-Ketobutyric acid | 600-18-0 | Acros | 99 | Mineral oil | 1/20 | 1/10 | nd | 4 |
| Dimethyl malonate | 108-59-8 | Acros | > 99 | None | None | 1/130 | 75 | 3 |
| Diethyl suberate | 2050-23-9 | Aldrich | 97 | None | None | 1/12 | 0.8 | 3 |
| 3-Acetyl-1-propanol | 1071-73-4 | Aldrich | 95 | None | None | 1/8 | 20 | 5 |
| 2-Butoxyethanolacetate | 112-07-2 | Alfa Aesar | 98 | None | None | 1/8 | 49 | 3 |
| Pinacol | 76-09-5 | Acros | 99 | Mineral oil | 1/20 | 1/10 | nd | 3 |
| 2-Acetylcyclopentanone | 1670-46-8 | Acros | 99 | None | None | 1/8 | 37 | 3 |
| Diethylacetal | 105-57-7 | Acros | 99 | None | None | 1/140 | 250 | 3 |
| Acetone4 | 67-64-1 | Acros | > 99 | None | None | 1/110 | 2800 | 6 |
| Ethyl acetate5 | 141-78-6 | Acros | > 99 | None | None | 1/1600 | 70 | 3 |
| 1-Propanol4 | 71-23-8 | Acros | > 99 | None | None | 1/10 | 2600 | 3 |
| 2-Propanol | 67-63-0 | Aldrich | > 99 | None | None | 1/21 | 2700 | 5 |
| Isobutanol | 78-83-1 | Acros | 99 | Mineral oil | 1/4 | 1/45 | nd | 4 |
| Isobutyric acid | 79-31-2 | Acros | > 99 | None | None | 1/130 | 15 | 3 |
| 2-Methylcyclopropane- carboxylic acid |
29555-02-0 | Acros | 98 | None | None | 1/68 | 15 | 3 |
| Iodoform | 75-47-8 | Aldrich | > 99 | Mineral oil | 1/10 | 1/10 | nd | 4 |
| Dipropylamine | 142-84-7 | Acros | 99 | Water | 1/100 | 1/8 | nd | 3 |
| Isopentyl formate | 110-45-2 | Fluka | > 95 | None | None | 1/270 | 75 | 4 |
1
CAS#, Chemical Abstract Services registry number; ppm, parts per million in air; nd, not determined.