N-Ethylaniline, identified by its CAS number 103-69-5, is a chemical compound of significant industrial importance, primarily recognized as a key intermediate in various synthesis processes. Its unique physical and chemical properties, coupled with stringent safety protocols and strategic sourcing, make it a critical component for manufacturers across several sectors.

Physically, N-Ethylaniline typically presents as a colorless to light yellow transparent oily liquid. It possesses a distinct characteristic odor, often described as weak and fishy. With a molecular weight of approximately 121.18 g/mol, its boiling point is around 205°C, and it has a melting point of approximately -63°C, indicating its liquid state under standard ambient conditions. Its density is close to that of water, around 0.963 g/mL at 25°C. Solubility in water is limited, approximately 50 g/L at 20°C, but it is soluble in many organic solvents.

Chemically, N-Ethylaniline is an aromatic amine. Its stability is a notable factor; while it is stable under normal conditions, prolonged exposure to air or light can lead to decomposition, necessitating careful storage in tightly closed containers in a cool, well-ventilated area, away from direct sunlight. It is combustible and can react violently with strong oxidizing agents and nitric acid, highlighting the importance of strict handling procedures. Its classification as a toxic substance (Hazard Class 6.1) means that inhalation, ingestion, or skin contact can lead to severe health effects. Therefore, appropriate personal protective equipment (PPE), including gloves, eye protection, and respiratory protection, is mandatory when handling this chemical. Manufacturers and suppliers provide detailed Safety Data Sheets (SDS) that outline comprehensive safety measures, first aid, and emergency procedures.

For businesses seeking to procure N-Ethylaniline, understanding the sourcing landscape is crucial. China has emerged as a prominent hub for the manufacture and supply of this intermediate, offering competitive pricing due to economies of scale and efficient production processes. When selecting a supplier, it is vital to prioritize manufacturers who can consistently deliver N-Ethylaniline with the required purity specifications (e.g., 99.5% or higher) and provide robust quality control documentation. Engaging with suppliers who can offer detailed technical data, batch traceability, and reliable logistical support ensures a stable and dependable supply chain. This is particularly important for applications in pharmaceuticals and specialized dyes where purity is paramount. Therefore, thorough due diligence when searching for an N-Ethylaniline manufacturer or supplier is a critical step for any industrial user.