ISOBUTYRIC ACID N-PROPYL ESTER Chemical Properties

Melting point:

-95.2°C (estimate)

Boiling point:

134 °C(lit.)

Density 

0.863 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.395(lit.)

FEMA 

2936 | PROPYL ISOBUTYRATE

Flash point:

80 °F

form 

clear liquid

color 

Colorless to Almost colorless

Odor

at 100.00 %. sweet ripe fruity tropical melon berry

Odor Type

fruity

JECFA Number

187

LogP

2.12

CAS DataBase Reference

644-49-5(CAS DataBase Reference)

NIST Chemistry Reference

N-Propyl iso-butyrate(644-49-5)

Safety Information

Risk Statements 

10

Safety Statements 

16

RIDADR 

UN 3272 3/PG 3

WGK Germany 

3

HazardClass 

3

PackingGroup 

III

HS Code 

29156000

MSDS

• Language:English Provider:SigmaAldrich

ISOBUTYRIC ACID N-PROPYL ESTER Usage And Synthesis

Chemical Properties

Propyl isobutyrate has a pineapple-like odor and a corresponding sweet flavor.

Occurrence

Reported found in several natural products including apple, olive, spineless monkey orange, Gruyere de Comte cheese, honey, hop oil, olives and Roman chamomile oil.

Definition

ChEBI: Propyl 2-methylpropanoate is a carboxylic ester.

Preparation

From propyl alcohol and isobutyric acid in benzene solution in the presence of concentrated H2SO4.

Aroma threshold values

Detection: 0.086 to 0.43 ppb

Taste threshold values

Taste characteristics at 5 to 15 ppm: sweet, fruity, with ripe, tropical, tutti-fruiti and citrus melon nuances.

ISOBUTYRIC ACID N-PROPYL ESTER(644-49-5)Related Product Information

• ISOBUTYRIC ACID PHENYL ESTER
• Isobutyric anhydride
• Hexyl isobutyrate
• Isobutyl isobutyrate
• Phenethyl isobutyrate
• Vanillin isobutyrate
• Butyl isobutyrate
• Ethyl isobutyrylacetate
• NERYL ISOBUTYRATE
• Ethyl vanillin isobutyrate
• GERANYL ISOBUTYRATE
• OCTYL ISOBUTYRATE
• Isobutyric acid
• Methyl isobutyrate
• CINNAMYL ISOBUTYRATE
• Isopentyl isobutyrate
• Benzyl isobutyrate
• Methyl isobutyrylacetate