Pentyl pentanoate (C4H9COO.C5H11) is an ester used in dilute solution to replicate the scent or flavour of apple, and sometimes pineapple.[1] It is referred to as pentyl valerate or amyl pentanoate using classical nomenclature.

It has chemical formula C10H14O3.

Methyl pentanoate, commonly known as methyl valerate, is the methyl ester of pentanoic acid (valeric acid) with a fruity odor. It is marketed under the trade name Validol as a sedative. It is also used in the manufacture of plastics and as an insecticide.

Ethyl pentanoate, also commonly known as ethyl valerate, is an organic compound used in flavors. It is an ester with the molecular formula C7H14O2. This colorless liquid is poorly soluble in water but miscible with organic solvents.

It has chemical formula C7 H14 O2.