Butyric acid isobutyl ester

Structural formula
General
Surname	Butyric acid isobutyl ester
other names	Isobutyl butanate; Isobutyl butyrate; 2-methyl propyl butanoate;
Molecular formula	C 8 H 16 O 2
Brief description	colorless liquid
External identifiers / databases
EC number	208-729-8
ECHA InfoCard	100.007.937
PubChem	10885
ChemSpider	10423
Wikidata	Q26840842
properties
Molar mass	144.21 g mol −1
Physical state	liquid
density	0.87 g cm −3
boiling point	157 ° C
Vapor pressure	3.9 hPa (20 ° C)
solubility	slightly soluble in water; miscible with ethanol and diethyl ether ; soluble in most fixed oils;
Refractive index	1.403 (20 ° C)
safety instructions
H and P phrases	H: 226-400
	P: 273
Toxicological data	> 5000 mg kg −1 ( LD 50 , rat , oral ) ; > 5000 mg kg −1 ( LD 50 , rabbit / mouse , transdermal ) ;
	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

Butyric acid isobutyl ester is a chemical compound from the group of carboxylic acid esters .

Occurrence

Butyric acid isobutyl ester is one of the volatile compounds that are formed when bananas are ripened. It is also found in jackfruit and was also found in apricots, apples, strawberries, blue and Gruyere cheese, cognac, port, rum, honey, olives, passion fruits, plums, beans, mushrooms, mangoes, apple brandy, quinces, cherimoya, kiwi fruit and den Shells of the Chinese quince demonstrated.

Extraction and presentation

Butyric acid isobutyl ester can be obtained by reacting butyric acid with isobutyl alcohol in the presence of sulfuric acid or with the help of an enzyme .

properties

Butyric acid isobutyl ester is a colorless liquid that is sparingly soluble in water. The compound has a fruity, ethereal smell reminiscent of apples or pineapple , and a sweet taste reminiscent of rum .

use

Butyric acid isobutyl ester is used as a flavoring for food .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j entry to Buttersäureisobutylester in the GESTIS database of IFA , retrieved on December 30, 2018(JavaScript required) .
↑ ^a ^b ^c David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 338 ( limited preview in Google Book search).
↑ ^a ^b ^c ^d George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2016, ISBN 978-1-4200-9086-4 , pp. 985 ( limited preview in Google Book Search).
↑ ^a ^b ^c data sheet isobutyl butyrate, ≥98%, FCC, FG from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).
↑ K. Herrmann: Exotic Food Ingredients and Use, For biologists, chemists, medical professionals and hobby cooks . Springer-Verlag, 2013, ISBN 978-3-642-96747-4 , pp. 59 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j entry to Buttersäureisobutylester in the GESTIS database of IFA , retrieved on December 30, 2018(JavaScript required) .

[David_R._Lide-2] David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 338 ( limited preview in Google Book search).

[George_A._Burdock-3] George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2016, ISBN 978-1-4200-9086-4 , pp. 985 ( limited preview in Google Book Search).

[Sigma-4] ta sheet isobutyl butyrate, ≥98%, FCC, FG from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).

[K._Herrmann-5] K. Herrmann: Exotic Food Ingredients and Use, For biologists, chemists, medical professionals and hobby cooks . Springer-Verlag, 2013, ISBN 978-3-642-96747-4 , pp. 59 ( limited preview in Google Book search).