Butyric acid isopropyl ester

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Structural formula
Structural formula of isopropyl butyrate
General
Surname Butyric acid isopropyl ester
other names

Isopropyl butyrate

Molecular formula C 7 H 14 O 2
Brief description

colorless liquid

External identifiers / databases
CAS number 638-11-9
EC number 211-320-7
ECHA InfoCard 100.010.292
PubChem 61184
Wikidata Q27161909
properties
Molar mass 130.19 g mol −1
Physical state

liquid

density

0.86 g cm −3

boiling point

130 ° C

Vapor pressure

65 hPa (50 ° C)

solubility
  • sparingly soluble in water (3.6 g l −1 at 25 ° C)
  • soluble in ethanol and oils
Refractive index

1.393 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable

Caution

H and P phrases H: 226
P: 210-370 + 378
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 isopropyl ester is a chemical compound from the group of carboxylic acid esters .

Occurrence

Isopropyl butyrate is found in apples , bananas , kiwi , melons , papaya , passion fruit , rum and strawberries .

Extraction and presentation

Butyric acid isopropyl ester can be obtained by reacting butyric acid with propylene in the presence of concentrated sulfuric acid at 125 ° C in a closed tube or from butyric acid and isopropyl alcohol in the presence of hydrochloric acid or p-toluenesulfonic acid.

properties

Butyric acid isopropyl ester is a colorless liquid that is sparingly soluble in water. It has a pleasant smell.

use

Isopropyl butyrate is used as a flavoring agent.

safety instructions

The vapors of isopropyl butyrate can form an explosive mixture with air ( flash point 25 ° C, ignition temperature 435 ° C).

Individual evidence

  1. ↑ a b c d e f g h i j entry to Buttersäureisopropylester in the GESTIS database of IFA , retrieved on December 11, 2018(JavaScript required) .
  2. ↑ a b c d George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2004, ISBN 978-1-4200-3787-6 , pp. 958 ( limited preview in Google Book search).
  3. ↑ a b Data sheet Isopropyl butyrate, ≥98%, FG from Sigma-Aldrich , accessed on December 11, 2018 ( PDF ).