乙酸异丁酯，结构式CH₃C(O)OCH₂CH(CH₃)₂。

具柔和果酯香味的水白色透明液体。与醇、醚、烃等多种有机溶剂混溶。毒性较低，但高浓度下会引起衰弱和麻痹。

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.