4-(4-aminophenyl)aniline

4-(4-aminophenyl)aniline is an aromatic diamine compound with the molecular formula C12H12N2 and CAS number 92-87-5. This chemical substance has a molecular weight of 184.24 g/mol and belongs to the class of biphenyl derivatives containing two amino groups. It is classified as a Category 1A carcinogen and poses significant health and environmental hazards, requiring careful handling and safety measures in industrial applications.

4-(4-aminophenyl)aniline typically appears as a crystalline solid at room temperature with aromatic amine characteristics. The compound contains two amino groups attached to a biphenyl structure, making it polar and potentially soluble in polar solvents. Its molecular structure (C12H12N2) suggests stability under normal conditions, though specific physical parameters like melting point and solubility depend on purity and environmental conditions.

4-(4-aminophenyl)aniline is primarily used as an intermediate in chemical synthesis and manufacturing processes. Its diamine structure makes it valuable for producing polymers, dyes, and other aromatic compounds. The substance serves as a building block in pharmaceutical and chemical industries, particularly in research and development applications. However, its carcinogenic classification severely restricts its use and requires strict safety protocols.

4-(4-aminophenyl)aniline requires maximum safety precautions due to its carcinogenic and toxic properties. Personnel must wear full protective equipment including chemical-resistant gloves, protective clothing, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin contact, inhalation, and ingestion. Emergency washing facilities must be readily available, and only trained personnel should handle this substance.

4-(4-aminophenyl)aniline must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Storage areas should be secure and accessible only to authorized personnel due to the carcinogenic nature. Containers must be properly labeled with hazard warnings and stored separately from oxidizing agents, acids, and food products to prevent contamination and reactions.

Immediate action is required for any contact with 4-(4-aminophenyl)aniline. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, flush with clean water for 15 minutes. Seek immediate medical attention in all cases and inform medical personnel about the carcinogenic nature of the substance.

4-(4-aminophenyl)aniline disposal must comply with strict hazardous waste regulations due to its carcinogenic and environmental hazard classification. The substance cannot be disposed of in regular waste streams and requires specialized hazardous waste treatment. Contact licensed waste disposal companies for proper handling and destruction. All contaminated materials, containers, and protective equipment must also be treated as hazardous waste requiring professional disposal services.

4-(4-aminophenyl)aniline is classified under ADR Class 6.1 (toxic substances) Packing Group II, indicating significant transport hazards. Shipments require proper dangerous goods packaging, labeling with GHS08, GHS07, and GHS09 pictograms, and appropriate shipping documentation. Carriers must be certified for dangerous goods transport, and vehicles must display proper hazard placards. Temperature control and secure handling throughout the transport chain are essential.

4-(4-aminophenyl)aniline is subject to extensive European chemical regulations including REACH registration requirements and CLP classification as Carcinogen 1A. The substance requires safety data sheets, exposure scenarios, and risk management measures. Its carcinogenic classification may trigger additional workplace safety regulations and potential use restrictions. Companies must implement appropriate risk management measures and comply with occupational exposure limits where established.

4-(4-aminophenyl)aniline is available through specialized chemical distributors in Europe, including OYSI, which supplies industrial chemicals to European markets. Due to the substance's hazardous nature and regulatory requirements, purchases are typically restricted to qualified industrial users with appropriate safety infrastructure. Suppliers must verify customer qualifications and intended use before providing this carcinogenic substance. Contact OYSI for availability and regulatory compliance support.