Ethyl valerate Property

Melting point:

-92--90°C

Boiling point:

144-145 °C (lit.)

Density 

0.875 g/mL at 25 °C (lit.)

vapor pressure 

3-27.3hPa at 20-50℃

refractive index 

n20/D 1.401(lit.)

FEMA 

2462 | ETHYL VALERATE

Flash point:

102 °F

storage temp. 

Store below +30°C.

solubility 

2.23g/l

form 

Liquid

color 

Clear colorless

Odor

at 10.00 % in dipropylene glycol. sweet fruity apple pineapple green tropical

Odor Type

fruity

explosive limit

1%(V)

Odor Threshold

0.00011ppm

Water Solubility 

2.226g/L(temperature not stated)

JECFA Number

30

Merck 

14,9904

BRN 

1744680

Dielectric constant

4.7（18℃）

LogP

2.3 at 22℃ and pH7

CAS DataBase Reference

539-82-2(CAS DataBase Reference)

NIST Chemistry Reference

Pentanoic acid, ethyl ester(539-82-2)

EPA Substance Registry System

Pentanoic acid, ethyl ester (539-82-2)

Safety

Risk Statements 

10

Safety Statements 

16

RIDADR 

UN 3272 3/PG 3

WGK Germany 

3

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29156090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

Ethyl valerate Chemical Properties,Usage,Production

Aroma

Powerful and diffusive, ethereal-fruity, Apple-like odor with a remote resemblance to Pineapple. Esters with traces of free acids will show this very perceptibly in the odor, not so conspicuously in the flavor (in aqueous media). Sweet and somewhat pungent-fruity, AppleIike, almost "gassy"-ethereal taste. In extreme dilution, the taste is merely sweet fruity.

Chemical Properties

clear colorless liquid

Chemical Properties

Ethyl valerate has a fruity odor suggestive of apple

Occurrence

Reported found in apples, bananas, guava, strawberry, cheeses, rum, whiskey, cider, sherry, grape wines, cocoa, coffee, honey and passion fruit, apricot, guava fruit and pineapple.

Uses

Ethyl valerate is widely used in flavor compositions, mainly for Apple imitations, but also for Apricot, Peach and in Butter and Nut complexes. Its power is utilized in the "Tutti-frutti" type of flavor for chewing gum, and it is occasionally used in tobacco flavoring. Concentrations vary from 5 to 15 ppm in the finished product, and up to 250 ppm in chewing gum.

Uses

Ethyl valerate has wide applications in the areas of food, pharmaceuticals and cosmetics industries.

Definition

ChEBI: Ethyl pentanoate is a fatty acid ester.

Preparation

By refluxing valeric acid and ethyl alcohol in the presence of concentrated H2SO4.

Aroma threshold values

Detection: 1.5 to 5 ppb

Taste threshold values

Taste characteristics at 30 ppm: fruity, strawberry, sweet, estry, fruity, pineapple, and tropical fruit.

Synthesis Reference(s)

Canadian Journal of Chemistry, 58, p. 2271, 1980 DOI: 10.1139/v80-365
The Journal of Organic Chemistry, 54, p. 4848, 1989 DOI: 10.1021/jo00281a029

General Description

Ethyl valerate is also known as the green apple flavor. Microwave spectrum of ethyl valerate, observed by molecular beam Fourier transform microwave spectroscopy, has been reported.