5-Amino-1-naphthalenesulfonic acid(CAS: 84-89-9)

5-Amino-1-naphthalenesulfonic acid is a crystalline solid with a molecular weight of approximately 210.18 g/mol. It dissolves well in water and has low solubility in organic solvents. Chemically, it is highly reactive towards acidic and basic conditions, making it suitable for various analytical and synthetic applications.

5-Amino-1-naphthalenesulfonic acid is commonly synthesized through the sulfonation of 1-naphthol followed by reduction of the sulfonic acid group. This process typically involves the use of sulfur trioxide in pyridine and subsequent reduction with sodium borohydride or hydrogen gas over a catalyst like palladium on carbon.

5-Amino-1-naphthalenesulfonic acid finds applications in various industries, including the pharmaceutical sector for drug synthesis, polymer production for its coloring properties, and sensor technology for analytical purposes. It is also used in semiconductor manufacturing for etching and polishing processes.

When handling 5-Amino-1-naphthalenesulfonic acid, it is essential to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats. Work should be conducted in a fume hood due to its reactivity. Spills should be cleaned up carefully, and proper safety data sheets (SDS) should be consulted for detailed instructions on disposal and emergency procedures.