Ethyl caprylate Property

Melting point:

-48--47 °C (lit.)

Boiling point:

206-208 °C (lit.)

Density 

0.867 g/mL at 20 °C (lit.)

vapor pressure 

0.02 mm Hg ( 25 °C)

refractive index 

n20/D 1.417(lit.)

FEMA 

2449 | ETHYL OCTANOATE

Flash point:

167 °F

storage temp. 

Store below +30°C.

solubility 

ethanol: soluble1ml/4ml, clear, colorless (70% ethanol)

form 

Liquid

color 

Clear colorless

Odor

at 100.00 %. fruity wine waxy sweet apricot banana brandy pear

Odor Type

waxy

explosive limit

0.7%(V)

Water Solubility 

insoluble

Merck 

14,3778

JECFA Number

33

BRN 

1754470

LogP

4.47 at 22.7℃

CAS DataBase Reference

106-32-1(CAS DataBase Reference)

NIST Chemistry Reference

Octanoic acid, ethyl ester(106-32-1)

EPA Substance Registry System

Ethyl octanoate (106-32-1)

Safety

Hazard Codes 

Xi

Risk Statements 

38

Safety Statements 

26-36

WGK Germany 

2

RTECS 

RH0680000

Autoignition Temperature

325 °C

TSCA 

Yes

HS Code 

29159080

Toxicity

LD50 orally in rats: 25,960 mg/kg, P. M. Jenner et al., Food Cosmet. Toxicol. 2, 327 (1964)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

Ethyl caprylate Chemical Properties,Usage,Production

Description

Ethyl caprylate (ethyl octanoate) is a kind of fatty acid ester formed from caprylic acid and ethanol. It is a kind of natural fruit flavoring agent. It is usually included in the alcohol beverage. Among the main flavoring components of None-flavor liquor, the absolute content of ethyl caprylate is not high but its flavoring contributions is higher than ethyl acetate, ethyl lactate, and ethyl butyrate, only lower than ethyl caproate. Only small amount of ethyl caprylate could produce obvious fruit aroma in Nong-flavor liquor. However, excessive content of ethyl caprylate would inhibit the performance of other flavoring components.

Chemical Properties

Ethyl Octanoate is a liquid with a fruity, floral odor. It occurs in many fruits and alcoholic beverages and is used in fruit flavors.

Chemical Properties

Ethyl octanoate has a pleasant, fruity, floral odor (wine–apricot note)

Chemical Properties

CLEAR COLOURLESS LIQUID

Occurrence

Reported found in apple, apricot, orange juice, grapefruit juice, guava, pineapple, cheddar cheese, other cheeses, butter, beer, cognac, rum, whiskey, cider, grape wines, cocoa, coconut meat, passion fruit, mango, pawpaw and mastic gum leaf oil.

Uses

Ethyl caprylate is a flavoring and fragrance agent.

Uses

Ethyl octanoate, found in Burgundy wine, was used to study its partition co-efficient in water in model wine using the headspace method.

Uses

manufacture of fruit ethers; constituent of enanthic, cocoic, and cognac ethers.

Preparation

Usually prepared by esterification of caprylic acid with ethyl alcohol and sulfuric acid as catalyst; also by alcoholysis of coconut oil in the presence of HCl.

Definition

ChEBI: A fatty acid ethyl ester resulting from the formal condensation of octanoic acid with ethanol.

Aroma threshold values

Detection: 5 to 92 ppb

Taste threshold values

Taste characteristics at 5 ppm: waxy, fatty, aldehydic, coconut, creamy and dairy-like.

Synthesis Reference(s)

Journal of the American Chemical Society, 89, p. 6804, 1967 DOI: 10.1021/ja01001a097
The Journal of Organic Chemistry, 42, p. 3209, 1977 DOI: 10.1021/jo00439a026

General Description

Ethyl octanoate is a powerful odourant found in mead (a traditional drink that contains alcohol).

Flammability and Explosibility

Not classified

Safety Profile

Mddly toxic by ingestion. A skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS.

Carcinogenicity

Not listed by ACGIH, California Proposition 65, IARC, NTP, or OSHA.

Metabolism

Aliphatic esters including ethyl caprylate are thought to be readily hydrolysed to the corresponding alcohol and acid, which are then further metabolized (Fassett, 1963). Oral adminis tration of ethyl caprylate to rats produced a ketonuria twice as great as that from acetoacetate, indicating the formation of two fragments for the production of ketone bodies, and it was suggested that caprylic acid was probably broken down by a process involving multiple alternate oxidation (Deuel, Hallman, Butts & Murray, 1936).

References

Powers, John J. "HETEROGENEITY AND TEMPERATURE EFFECTS ON FLAVOR SENSING OF ETHYL CAPRYLATE." Journal of Food Science 42.1(2010):275-276.
Zhibin, L. I., and L. I. Jin. "Analysis of the Content of Ethyl Caprylate in Nong-flavor Liquor and Its Flavoring Contributions." Liquor-Making Science & Technology (2013).