Propyl isobutyrate

Structural formula
General
Surname	Propyl isobutyrate
other names	Propyl isobutyrate; Isobutyric acid n -propyl ester;
Molecular formula	C 7 H 14 O 2
Brief description	colorless liquid
External identifiers / databases
EC number	211-417-4
ECHA InfoCard	100.010.381
PubChem	12571
ChemSpider	12051
Wikidata	Q27162039
properties
Molar mass	130.19 g mol −1
Physical state	liquid
density	0.86 g cm −3
boiling point	135 ° C
solubility	poorly soluble in water (2.8 g l −1 at 25 ° C); soluble in organic solvents;
Refractive index	1.395 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 226
	P: no P-phrases
	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

Propyl isobutyrate is a chemical compound from the group of carboxylic acid esters .

Occurrence

Propyl isobutyrate occurs naturally in various natural products such as apples , olives , monkey oranges , cheese , honey , hop oil and chamomile oil.

Extraction and presentation

Propyl isobutyrate can be obtained by reacting propyl alcohol with isobutyric acid in the presence of sulfuric acid.

properties

Propyl isobutyrate is a colorless liquid with a pineapple-like odor that is sparingly soluble in water. At a concentration of 5 to 15 ppm , its taste is sweet and fruity, with nuances of citrus melon.

use

Propyl isobutyrate is used as a fragrance and flavoring substance .

safety instructions

The vapors of propyl isobutyrate can form an explosive mixture with air ( flash point 27 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on propyl isobutyrate in the GESTIS substance database of the IFA , accessed on December 30, 2018(JavaScript required) .
↑ ^a ^b ^c ^d ^e George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2001, ISBN 978-1-4398-6327-5 , pp. 1551 ( limited preview in Google Book search).
↑ Data sheet Propyl isobutyrate, ≥97%, FG from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).
↑ Wolfgang Mücke, Christa Lemmen: Fragrance and smell - effects and health significance of odorous substances . ecomed-Storck GmbH, 2010, ISBN 978-3-609-16436-6 , p. 51 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on propyl isobutyrate in the GESTIS substance database of the IFA , accessed on December 30, 2018(JavaScript required) .

[George_A._Burdock-2] George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2001, ISBN 978-1-4398-6327-5 , pp. 1551 ( limited preview in Google Book search).

[Sigma-3] Data sheet Propyl isobutyrate, ≥97%, FG from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).

[Wolfgang_Mücke,_Christa_Lemmen-4] Wolfgang Mücke, Christa Lemmen: Fragrance and smell - effects and health significance of odorous substances . ecomed-Storck GmbH, 2010, ISBN 978-3-609-16436-6 , p. 51 ( limited preview in Google Book search).