. This azo dye exhibits excellent lightfastness and solvent resistance, making it suitable for coloring thermoplastics, synthetic fibers, leather, and paints. This article provides a comprehensive overview of Solvent Yellow 82, including its chemical structure, properties, production methods, applications, and potential hazards. **Chemical Structure and Properties** Solvent Yellow 82 belongs to the azo dye class, characterized by a diazo group (-N=N-) bonded to two aromatic groups..4 g/mol. It is soluble in organic solvents such as ethanol, acetone, and chloroform but insoluble in water. The dye exhibits high thermal stability and resistance to fading, making it suitable for use in harsh conditions.. The diazo component is prepared by reacting aniline with sodium nitrite in aqueous hydrochloric acid. The resulting diazonium salt is then coupled with 2-naphthol-6-sulfonic acid to form Solvent Yellow 82. Alternative production methods include the use of different diazo components and coupling agents to achieve specific shades and properties.. * **Synthetic Fibers:** Dyeing polyester, nylon, and acrylic fibers for textiles, clothing, and carpets. * **Leather:** Imparting yellow color to leather goods, such as handbags, shoes, and upholstery. * **Paints:** Adding yellow pigment to industrial, automotive, and decorative paints.. Studies have shown that prolonged exposure to the dye in high concentrations can increase the risk of bladder cancer. Therefore, it is essential to handle and use Solvent Yellow 82 with proper safety measures, including adequate ventilation, protective clothing, and gloves. **Conclusion** Solvent Yellow 82 is a widely used azo dye that offers excellent lightfastness, solvent resistance, and thermal stability. Its versatility makes it suitable for coloring various materials in industrial, commercial, and consumer applications. However, the potential carcinogenic hazard associated with Solvent Yellow 82 necessitates proper handling and safety precautions to minimize health risks.