Para Nitro Aniline, Colour : Brown

Para-nitroaniline (PNA) is an aromatic compound with the chemical formula C6H6N2O2. It appears as a pale yellow crystalline solid that is sparingly soluble in water but soluble in organic solvents. PNA is primarily used as an intermediate in the synthesis of various chemicals, including dyes, pharmaceuticals, and pesticides. In the dye industry, it contributes to the production of azo dyes, imparting shades of yellow to brown. In pharmaceuticals, para-nitroaniline serves as a precursor for manufacturing drugs used in treating diseases such as tuberculosis. However, PNA requires careful handling due to its toxicity, particularly affecting the liver and causing methemoglobinemia in humans upon prolonged exposure. Safety protocols include proper ventilation, use of personal protective equipment, and adherence to regulatory guidelines to minimize health risks during production, handling, and disposal processes.