N,N-Diethyl-1,4-benzenediamine(CAS: 2198-58-5)

N,N-Diethyl-1,4-benzenediamine (CAS: 2198-58-5) is a colorless oil with a molecular weight of 166.23 g/mol. It has a specific gravity of 0.975 g/cm³ and is poorly soluble in water but readily soluble in organic solvents like ethanol and acetone. This compound is mildly basic and stable under normal conditions but can react with strong acids or oxidizing agents.

N,N-Diethyl-1,4-benzenediamine is commonly synthesized through the reaction of 1,4-diaminobenzene with diethylamine. The reaction is performed under anhydrous conditions and at elevated temperatures. Catalysts such as p-toluenesulfonic acid are often used to enhance the reaction rate and improve yield. The overall yield is typically around 90%, and the product can be purified by distillation.

N,N-Diethyl-1,4-benzenediamine is predominantly used in the pharmaceutical and polymer industries. It serves as a precursor for the synthesis of various drugs and is also employed in the manufacture of polyurethane and polyamide resins. Additionally, it is utilized in the production of sensors for detecting aromatic amines and in semiconductor fabrication as a dopant.

When handling N,N-Diethyl-1,4-benzenediamine (CAS: 2198-58-5), it is essential to wear appropriate personal protective equipment (PPE) including safety glasses, gloves, and a lab coat. Work should be conducted in a well-ventilated area or with the use of a fume hood to minimize inhalation risks. Spills should be cleaned up carefully by neutralizing with a suitable base and disposing of the waste according to local regulations. Always refer to the safety data sheet (SDS) for detailed handling instructions.