The chemical formula for Trans,Trans-2,4-Undecadienal 30361-29-6 is Liquid. It is known as E,E-2,4-Undecadienal, 2,4-Undecadienal, 2E,4E-Undeca-2,4-Dienal, and 2E,4E-Undeca-2,4-Dienal. It is used in the Aroma, Perfume, Fragrance, Flavor, Soap and Detergent Industries, Pharmaceutical Industry, and Chemical Industries. Storage: Keep in a cool place. Keep the container tightly closed in a dry, well-ventilated location. To prevent leakage, open containers must be carefully resealed and kept upright.