Pentanal

Pentanal is the organic compound is an alkyl aldehyde, molecular formula C₅H₁₀O. It is used in flavorings, resin chemistry, and rubber accelerators. Its smell is described as fermented, bready, fruity, nutty, berry.

Pentanal is used in diverse flavors (e. g. fruit flavors) and as a vulcanization accelerator.

2-Propyl-2-heptenal is obtained from pentanal by aldol condensation, which is hydrogenated to the saturated branched 2-propylheptanol. This alcohol serves as a starting material for the PVC plasticizer di-2-propylheptyl phthalate (DPHP).

Valeraldehyde is oxidized to give valeric acid.