2,4-Decadienal(CAS: 2363-88-4)

2,4-Decadienal (CAS: 2363-88-4) is a colorless to light yellow liquid with a strong aldehyde odor. It has a molecular weight of 140.17 g/mol and a density of 0.915 g/cm³. The compound is slightly soluble in water but miscible with ethanol, acetone, and other organic solvents. It is reactive towards nucleophiles and can undergo addition and oxidation reactions.

2,4-Decadienal can be synthesized via the hydroformylation of 2-buten-4-one followed by hydrolysis. Alternatively, it can be prepared by the hydroformylation of 2-buten-4-ol. The reaction uses rhodium catalysts with a cobalt or iron-based co-catalyst, typically requiring high pressure and temperature conditions. The yield is around 80-90%, and the product is usually purified by distillation.

2,4-Decadienal is used in the fragrance and fine chemical industries as a flavor and fragrance ingredient. It is also used in the polymer industry as a monomer and in the semiconductor industry as a precursor for organic thin films. Additionally, it has applications in the food industry as a flavor enhancer and in the pharmaceutical industry for the synthesis of certain drugs.

2,4-Decadienal should be handled with care due to its flammability and potential for skin and eye irritation. It is recommended to wear personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. Work should be conducted in a fume hood to minimize inhalation. In case of a spill, contain the spill with an appropriate absorbent material and dispose of it according to local regulations. Refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.