| Names | |
|---|---|
|  Preferred IUPAC name  Octan-3-one  | |
| Other names  Ethyl amyl ketone; n-Octanone-3; Amyl ethyl ketone; Ethyl pentyl ketone; Ethyl n-amyl ketone; Ethyl n-pentyl ketone  | |
| Identifiers | |
3D model (JSmol)  | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.003.113 | 
 PubChem CID  | |
| UNII | |
 CompTox Dashboard (EPA)  | |
  | |
  | |
| Properties | |
| C8H16O | |
| Molar mass | 128.215 g·mol−1 | 
| Appearance | colorless liquid | 
| Density | 0.822 g/mL [1] | 
| Boiling point | 167 to 168 °C (333 to 334 °F; 440 to 441 K) [1] | 
| insoluble in water [2] | |
| Vapor pressure | 2 mmHg (20°C) [2] | 
| Hazards | |
| Flash point | 59 °C; 138 °F; 332 K | 
| NIOSH (US health exposure limits): | |
 PEL (Permissible)  | TWA 25 ppm (130 mg/m3) [2] | 
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).  | |
3-Octanone is an organic compound with the formula C5H11C(O)C2H5. A colorless fragrant liquid, it is classified as a ketone. It is one of three octanones, the others being 2-octanone and 4-octanone.
3-Octanone is found in a variety of sources such as plants (such as lavender), [3] herbs (such as rosemary, [4] basil, and thyme [5] ), and nectarines. [6] It was also found to be present in Japanese catnip (Schizonepeta tenuifolia) [7] and the pine king bolete (Boletus pinophilus). [8] It is produced by oyster mushrooms as an insecticide to kill roundworms. [9] [10]
3-Octanone is used as a flavor and fragrance ingredient. [11] [12] [13]