trans,trans-2,4-Nonadienal (CAS: 5910-87-2) is an unsaturated aliphatic aldehyde highly regarded for its potent sensory properties. It typically presents as a slightly yellow to green liquid, characterized by a strong, fatty, and floral odor profile. This compound is a critical ingredient in the flavor and fragrance sectors, where its intense aromatic characteristics are utilized even at very low concentrations.
Recognized as a valuable flavoring agent, it is frequently employed to impart authentic fatty, deep-fried, or specific floral notes to food products and aromatic blends. Its conjugated diene structure makes it chemically reactive, requiring careful handling and storage to maintain its organoleptic integrity. The product is manufactured to rigorous standards to support its use in premium flavor formulations.