4-(4-aminophenyl)sulfanylaniline

4-(4-aminophenyl)sulfanylaniline is an organic chemical compound with the molecular formula C12H12N2S and CAS number 139-65-1. This aromatic amine contains two phenyl rings connected by a sulfur bridge, with amino groups on both rings. It has a molecular weight of 216.3 g/mol and is classified as a carcinogenic substance (Category 1B) requiring careful handling under appropriate safety protocols.

4-(4-aminophenyl)sulfanylaniline is a solid aromatic compound at room temperature with a molecular weight of 216.3 g/mol. As an aromatic amine with sulfur bridging, it typically exhibits limited water solubility but may dissolve in organic solvents. The compound contains two amino groups that can participate in hydrogen bonding and various chemical reactions typical of aromatic amines.

4-(4-aminophenyl)sulfanylaniline is primarily used as an intermediate in chemical synthesis and pharmaceutical manufacturing. Its aromatic amine structure makes it valuable for producing dyes, pigments, and various organic compounds. Due to its carcinogenic classification, its use is restricted to professional industrial applications with appropriate safety controls and regulatory compliance.

4-(4-aminophenyl)sulfanylaniline requires strict safety measures due to its carcinogenic properties (Carc. 1B). Essential protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin contact, inhalation, and ingestion. Implement appropriate containment measures and ensure personnel are trained in carcinogen handling procedures.

4-(4-aminophenyl)sulfanylaniline should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers tightly sealed and labeled according to GHS requirements. Storage areas must be secured and accessible only to authorized personnel due to the carcinogenic nature. Implement appropriate inventory control and ensure compliance with local regulations for carcinogenic substances.

4-(4-aminophenyl)sulfanylaniline exposure requires immediate action due to its toxicity. For skin contact, immediately remove contaminated clothing and wash thoroughly with soap and water. In case of eye contact, flush with clean water for at least 15 minutes. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention, informing healthcare providers of the carcinogenic nature.

4-(4-aminophenyl)sulfanylaniline disposal must comply with hazardous waste regulations due to its carcinogenic classification. The substance cannot be disposed of as regular waste and requires specialized hazardous waste treatment facilities. Contact licensed waste disposal companies experienced in handling carcinogenic materials. Maintain proper documentation and chain of custody throughout the disposal process as required by local environmental regulations.

4-(4-aminophenyl)sulfanylaniline is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transport purposes. Packages must be properly labeled with appropriate hazard markings and GHS pictograms (GHS07, GHS08, GHS09). Transport documents must include proper shipping names and hazard classifications. Ensure carriers are trained in dangerous goods handling and emergency procedures for carcinogenic substances.

4-(4-aminophenyl)sulfanylaniline is subject to extensive regulatory control under REACH and CLP regulations in Europe due to its carcinogenic classification (Category 1B). While not currently listed as a SVHC, its use may be restricted or require authorization depending on applications. Companies must comply with occupational exposure limits, implement risk management measures, and maintain appropriate safety data sheets and exposure scenarios.

4-(4-aminophenyl)sulfanylaniline is available through OYSI, a specialized European distributor of technical chemicals. As a carcinogenic substance, purchase is restricted to qualified industrial users who can demonstrate appropriate handling capabilities and regulatory compliance. OYSI provides technical support and ensures proper documentation for this controlled substance, facilitating safe and compliant procurement for authorized applications.