4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol(CAS: 5290-62-0)

4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol is a crystalline compound with a molecular weight of approximately 319.09 g/mol. It has a solubility of about 0.01 g/100 mL in water and is slightly soluble in ethanol. The compound is reactive and can undergo photodegradation and chemical transformations under certain conditions.

4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol can be synthesized via diazotization of 4-nitrophenylamine with 1-naphthol. The reaction typically involves the use of sodium nitrite and hydrochloric acid as reagents. The yield can be improved by optimizing the reaction conditions such as temperature and concentration.

4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol is primarily used in the pharmaceutical industry for the synthesis of various dyes and pigments. It is also utilized in the production of sensors and as an intermediate in other chemical processes.

When handling 4-[(E)-(4-Nitrophenyl)diazenyl]-1-naphthol, it is important to use personal protective equipment (PPE) such as gloves, lab coat, and goggles. The compound should be stored in a cool, dry place away from direct sunlight. In case of spills, the area should be ventilated and cleaned up using appropriate procedures. It is advisable to consult the Safety Data Sheet (SDS) for detailed handling instructions.