Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate(CAS: 523-44-4)

Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate (CAS: 523-44-4) is a crystalline compound with a molecular weight of approximately 389.26 g/mol. It has a high solubility in water and low solubility in organic solvents. Chemically, it is stable under normal conditions but reacts with strong oxidizing agents. It decomposes above 150°C.

Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate is typically synthesized via a diazotization reaction of 4-nitrobenzenesulfonic acid with 4-hydroxy-1-naphthylamine followed by reduction to the azide. The process requires careful control of pH and temperature to achieve high yield and selectivity.

Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate (CAS: 523-44-4) is used in the pharmaceutical industry as an intermediate for the synthesis of dyes and pigments, and in the semiconductor industry as a dopant for organic semiconductors. It is also employed in the polymer industry as a stabilizer.

When handling Sodium 4-[(E)-(4-hydroxy-1-naphthyl)diazenyl]benzenesulfonate (CAS: 523-44-4), safety goggles, gloves, and laboratory coats should be worn. It should be stored in a cool, dry place away from heat sources and oxidizing agents. In case of a spill, it should be cleaned up immediately using appropriate personal protective equipment (PPE) and following the Material Safety Data Sheet (MSDS) guidelines.