(2E,4E)-2,4-Nonadienal(CAS: 5910-87-2)

(2E,4E)-2,4-Nonadienal is a colorless to light yellow liquid with a characteristic odor. It has a molecular weight of approximately 154.24 g/mol and a boiling point of 175-176°C. The compound is slightly soluble in water but miscible with common organic solvents. It is reactive towards oxidizing agents and can undergo polymerization under certain conditions.

(2E,4E)-2,4-Nonadienal can be synthesized via the Wittig reaction or the Meerwein-Ponndorf-Verley reduction of appropriate ketones. Commonly, the Wittig reaction involves the reaction of an aldehyde with a suitable phosphorus ylide. The yield can be improved with the use of appropriate solvents and temperature control, achieving up to 85% yield under optimized conditions.

(2E,4E)-2,4-Nonadienal is used in the fragrance and flavor industry for its characteristic odor. It is also utilized in the polymer industry as a monomer for the production of certain polymeric materials. Additionally, it finds applications in the food industry as a flavor enhancer and in the chemical industry for the synthesis of other compounds.

When handling (2E,4E)-2,4-Nonadienal, it is important to use proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood. In case of a spill, it should be immediately cleaned up using absorbent materials. The material safety data sheet (MSDS) should be consulted for detailed information on handling and storage. Avoid contact with eyes and skin, and dispose of waste according to local regulations.