ethyl propionate

Some fruits like kiwis and strawberries naturally contain ethyl propionate in small amounts.

Ethyl propionate is a compound with formula CH(CHCOO).

Malic acid can be used for apple flavor, allyl hexanoate for pineapple, ethyl propionate for fruit punch, cinnamic aldehyde for cinnamon and acetophenone for cherry.

When ethyl propionate with an oxygen-18-labeled ethoxy group is treated with sodium hydroxide (NaOH), the oxygen-18 label is completely absent from propionic acid and is found exclusively in the ethanol.