Ethyl valerate

Structural formula
General
Surname	Ethyl valerate
other names	Ethyl valerate; Ethyl pentanoate;
Molecular formula	C 7 H 14 O 2
Brief description	colorless liquid with a fruity odor
External identifiers / databases
EC number	208-726-1
ECHA InfoCard	100.007.934
PubChem	10882
Wikidata	Q1193173
properties
Molar mass	130.19 g mol −1
Physical state	liquid
density	0.87 g cm −3
Melting point	−91 ° C
boiling point	145 ° C-146 ° C
Vapor pressure	3 hPa (20 ° C); 9.1 hPa (30 ° C); 16.1 hPa (40 ° C); 27.3 hPa (50 ° C);
solubility	sparingly soluble in water (2.23 g l −1 at 20 ° C)
Refractive index	1.399 (20 ° C, 589 nm)
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 226
	P: 210
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Ethyl valerate is a chemical compound from the group of carboxylic acid esters .

Occurrence

Ethyl valerate occurs naturally in apples, bananas and other natural products.

Extraction and presentation

Ethyl valerate 2 can be obtained by reacting valeric acid 1 with ethyl alcohol in the presence of sulfuric acid.

properties

Ethyl valerate is a colorless, flammable liquid with a fruity odor that is sparingly soluble in water. It has a dynamic viscosity of 0.8 mPa · s at a temperature of 20 ° C.

use

Ethyl valerate, with its green apple scent, is a widely used flavoring agent. In organic synthesis, the compound is used in nucleophilic substitutions, in α-alkylations and in heterocycle syntheses.

safety instructions

The vapors of ethyl valerate form explosive mixtures with air when the substance is heated above its flash point (flash point: 36 ° C, ignition temperature: 400 ° C) or at elevated ambient temperatures.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Entry for CAS no. 539-82-2 in the GESTIS substance database of the IFA , accessed on April 23, 2018(JavaScript required) .
↑ ^a ^b ^c ^d ^e ^f Entry on pentanoates. In: Römpp Online . Georg Thieme Verlag, accessed on April 23, 2018.
↑ Data sheet ethyl valerate (PDF) from Merck , accessed on December 18, 2012.
↑ ^a ^b George A. Burdock: Fenaroli's Handbook of Flavor Ingredients: George A. Burdock . CRC Press, 2005, ISBN 0-8493-3034-3 , pp. 638 ( limited preview in Google Book search).
^ AK Haghi: Food Science: Research and Technology . CRC Press, 2011, ISBN 1-926895-01-0 , pp. 4 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Entry for CAS no. 539-82-2 in the GESTIS substance database of the IFA , accessed on April 23, 2018(JavaScript required) .

[Roempp-2] ↑ ^a ^b ^c ^d ^e ^f Entry on pentanoates. In: Römpp Online . Georg Thieme Verlag, accessed on April 23, 2018.

[3] Data sheet ethyl valerate (PDF) from Merck , accessed on December 18, 2012.

[George_A._Burdock-4] George A. Burdock: Fenaroli's Handbook of Flavor Ingredients: George A. Burdock . CRC Press, 2005, ISBN 0-8493-3034-3 , pp. 638 ( limited preview in Google Book search).

[A._K._Haghi-5] AK Haghi: Food Science: Research and Technology . CRC Press, 2011, ISBN 1-926895-01-0 , pp. 4 ( limited preview in Google Book search).