丁酸乙酯，分子式CH₃CH₂CH₂COOCH₂CH₃。

无色透明有菠萝香味的液体。溶于乙醇、乙醚等有机溶剂。俗称凤梨油。

Ethyl butyrate, also known as ethyl butanoate, or butyric ether, is an ester with the chemical formula CH₃CH₂CH₂COOCH₂CH₃. It is soluble in propylene glycol, paraffin oil, and kerosene. It has a fruity odor, similar to pineapple. It occurs naturally in many fruits.