Ethyl octanoate, also known as ethyl caprylate, is a fatty acid ester formed from caprylic acid and ethanol. It has the semi-developed formula of CH3(CH2)6COOCH2CH3, and is used in food industries as a flavoring and in the perfume industry as a scent additive. It is present in many fruits and alcoholic beverages, and has a strong odor of fruit and flowers. It is used in the creation of synthetic fruity scents.
|Preferred IUPAC name
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||172.268 g·mol−1|
|Melting point||−48 °C (−54 °F; 225 K)|
|Boiling point||208 °C (406 °F; 481 K)|
|Vapor pressure||0.2 mbar at 20°C; 3.18 mbar at 60°C|
|Explosive limits||0.7 - Vol.%|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|25.96 g/kg (rat, oral)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
- Sheu, Yaw-Wen; Tu, Chein-Hsiun (2006). "Densities and Viscosities of Binary Mixtures of Isoamyl Acetate, Ethyl Caproate, Ethyl Benzoate, Isoamyl Butyrate, Ethyl Phenylacetate, and Ethyl Caprylate with Ethanol at T = (288.15, 298.15, 308.15, and 318.15) K". Journal of Chemical and Engineering Data. 51 (2): 496–503. doi:10.1021/je050389b.
- Record of Ethyl octanoate in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 10 August 2010.
- Ethyl caprylate in the ChemIDplus database, accessed 10 August 2010
- Mark, James E. (2007). Physical Properties of Polymer Handbook (2nd ed.). Springer. p. 294. ISBN 0387690026. Retrieved 1 March 2013.
- Fahlbusch, Karl-Georg; Hammerschmidt, Franz-Josef; Panten, Johannes; Pickenhagen, Wilhelm; Schatkowski, Dietmar; Bauer, Kurt; Garbe, Dorothea; Surburg, Horst (15 January 2003). Flavors and Flagrances. Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. doi:10.1002/14356007.a11_141.