5145. Isobutyl Isobutyrate

Nomenclature

CAS number: 97-85-8
2-Methylpropanoic acid 2-methylpropyl ester; isobutyl isobutanoate; 2-methylpropyl 2-methylpropanoate.
C8H16O2; mol wt 144.21.
C 66.63%, H 11.18%, O 22.19%.

Description and references

Occurs naturally in fruits such as apples, bananas, mangoes, melons and strawberries, and in honey, rum and wine.

Chemical structure

Properties

Liquid, odor and taste reminiscent of pineapple. d40 0.875. bp 147°. mp 81°. nD20 1.3999. Flash pt, closed cup: 37°C. Flammable. Sol in organic solvents, alcohol, ethers. Insol in water.

Caution

Potential symptoms of overexposure are drowsiness, dermatitis; inhalation or direct contact may cause irritation of eyes, respiratory tract, skin.

Use

Flavoring agent in foods and beverages. Pharmaceutic aid (flavor).