4,4'-[(E)-1,2-Diazenediyl]bis(4-cyanopentanoic acid)(CAS: 2638-94-0)

4,4'-[(E)-1,2-Diazenediyl]bis(4-cyanopentanoic acid) is a crystalline solid with a molecular weight of approximately 313.2 g/mol. It has a high melting point and is poorly soluble in water but soluble in organic solvents. Chemically, it is known for its reactivity, particularly in its ability to participate in azide-alkyne cycloaddition reactions.

This compound is commonly synthesized via the condensation of 4-cyanopentanoyl azide with appropriate aldehydes or ketones. The reaction is typically catalyzed by a transition metal complex such as palladium(II) acetate. The yield and selectivity of the synthesis can be optimized by varying the reaction conditions and catalyst choice.

This compound finds applications in various industries, including pharmaceuticals, where it is used in the synthesis of azido-containing compounds for drug development. It is also used in the polymer industry for functionalizing polymers and in the development of smart materials. Additionally, it has applications in sensors and semiconductors due to its reactivity and diverse chemical functionality.

When handling 4,4'-[(E)-1,2-Diazenediyl]bis(4-cyanopentanoic acid), it is important to wear appropriate 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. Spills should be cleaned up immediately using appropriate absorbents and the site should be decontaminated. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.