Isobutyl acetate

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Isobutyl acetate[1][2]
Isobutyl acetate
IUPAC name
2-methylpropyl acetate
Other names
Isobutyl ester
110-19-0 YesY
ChEBI CHEBI:50569 YesY
ChemSpider 7747 YesY
Jmol-3D images Image
PubChem 8038
Molar mass 116.16 g/mol
Appearance Colourless liquid
Odor Fruity, floral[3]
Density 0.875 g/cm3, liquid
Melting point −99 °C (−146 °F; 174 K)
Boiling point 118 °C (244 °F; 391 K)
Slightly soluble
0.63-0.7g/100g at 20 °C
Vapor pressure 13 mmHg (20°C)[3]
Flash point 18 °C; 64 °F; 291 K [3]
Explosive limits 1.3%-10.5%[3]
US health exposure limits (NIOSH):
TWA 150 ppm (700 mg/m3)[3]
TWA 150 ppm (700 mg/m3)[3]
1300 ppm[3]
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

The chemical compound isobutyl acetate, also known as 2-methylpropyl ethanoate (IUPAC name) or β-methylpropyl acetate, is a common solvent. It is produced from the esterification of isobutanol with acetic acid. It is used as a solvent for lacquer and nitrocellulose. Like many esters it has a fruity or floral smell at low concentrations and occurs naturally in raspberries, pears and other plants. At higher concentrations the odor can be unpleasant and may cause symptoms of central nervous system depression such as nausea, dizziness and headache.

A common method for preparing isobutyl acetate is Fischer esterification, where precursors isobutyl alcohol and acetic acid are heated in the presence of a strong acid.

Isobutyl acetate has three isomers: n-butyl acetate, tert-butyl acetate, and sec-butyl acetate, which are also common solvents.