Butyl isobutyrate Chemical Properties

Melting point:

-88.07°C (estimate)

Boiling point:

155-156 °C(lit.)

Density 

0.862 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.401(lit.)

FEMA 

2188 | BUTYL ISOBUTYRATE

Flash point:

110 °F

form 

clear liquid

color 

Colorless to Almost colorless

Odor

at 100.00 %. sweet fruity green tropical apple banana

Odor Type

fruity

Odor Threshold

0.022ppm

JECFA Number

188

LogP

2.65

CAS DataBase Reference

97-87-0(CAS DataBase Reference)

NIST Chemistry Reference

Propanoic acid, 2-methyl-, butyl ester(97-87-0)

EPA Substance Registry System

Propanoic acid, 2-methyl-, butyl ester (97-87-0)

Safety Information

Hazard Codes 

Xi

Risk Statements 

10-36/37/38

Safety Statements 

26

RIDADR 

UN 3272 3/PG 3

WGK Germany 

2

RTECS 

UA2466945

HazardClass 

3

PackingGroup 

III

HS Code 

29156000

MSDS

• Language:English Provider:Butyl 2-methylpropanoate
• Language:English Provider:SigmaAldrich

Butyl isobutyrate Usage And Synthesis

Chemical Properties

Butyl isobutyrate is a colorless liquid, almost insoluble in water, miscible with alcohol and oils. Sp.Gr. 0.862. B.P. 156℃.  Butyl isobutyrate has a strong, fresh, fruity odor (apple, banana) and sweet, pineapple-like taste.

Occurrence

Reported present in Roman chamomile essential oil, papaya, quince, apple, honey, apricot, banana and cheeses.

Uses

Butyl isobutyrate is used in flavor compositions for imitation Apple, Apricot, Banana, Arak, Butter, Cherry, Ginger, Gooseberry, Hop, Melon, Blackberry, Orange, Peach, Pineapple, Raspberry, Strawberry, Tangerine, etc. Concentrations in the finished product are normally about 40 ppm, except in chewing gum - up to 2000 ppm, (Juicy-fruit and Tuttifrutti type of flavors for chewing gum).

Preparation

Prepared from the corresponding acid and n-butyl alcohol by esterification in the presence of concentrated H2SO4 with or without solvent (boiling benzene). Or Butyl isobutyrate is formed by direct esterificalion of n-Butyl alcohol with iso-Butyric acid under azeotropic conditions.

Definition

ChEBI: Butylisobutyrate is a carboxylic ester.

Aroma threshold values

Detection: 80 to 170 ppb

Taste threshold values

Taste characteristics at 30 ppm: fruity, sweet, pineapple, apple, cherry, tutti-frutti, banana.

Butyl isobutyrate(97-87-0)Related Product Information

• Cyhalofop-butyl
• Isobutyl methacrylate
• Isobutyric acid
• OCTYL ISOBUTYRATE
• Butyl methacrylate
• 2-Butoxyethanol
• Buprofezin
• Butyl propionate
• tert-Butyl 2-bromo-2-methylpropanoate
• Diethylene glycol monobutyl ether
• tert-Butanol
• Butyl acetate
• Butyl levulinate
• Butyl acrylate
• Methyl 2-bromo-2-methylpropionate
• Sucrose acetate isobutyrate
• Tributyl phosphate
• tert-Butyl methacrylate