5-(Dimethylamino)naphthalene-1-sulfonamide(CAS: 1431-39-6)

5-(Dimethylamino)naphthalene-1-sulfonamide (CAS: 1431-39-6) is a crystalline compound with a molecular weight of approximately 252.26 g/mol. It has poor water solubility but good solubility in organic solvents like ethanol and acetone. This compound shows basic properties due to its amine group and is known for its stability under normal conditions but can react with strong acids and bases. It is often used in biological and pharmaceutical applications due to its chemical reactivity.

5-(Dimethylamino)naphthalene-1-sulfonamide is typically synthesized through the reaction of naphthol with dimethylamine in the presence of a sulfonating agent like sulfur trioxide. Common methods include the use of metaphosphoric acid or oleum as the sulfonating agent. The reaction involves the sulfonation step followed by the coupling with the amine. The yield is generally good, and the product can be purified by recrystallization.

5-(Dimethylamino)naphthalene-1-sulfonamide (CAS: 1431-39-6) is primarily used in pharmaceuticals for dyeing and as a chromogen in biological assays. It is also utilized in the polymer industry as a colorant and in the semiconductor industry as a dopant. Additionally, it has applications in sensor technology due to its optical properties.

When handling 5-(Dimethylamino)naphthalene-1-sulfonamide (CAS: 1431-39-6), it is important to wear appropriate personal protective equipment such as gloves, goggles, and a lab coat. It should be stored in a cool, dry place away from heat and direct sunlight. In case of a spill, it should be carefully cleaned up with absorbent material and disposed of according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling and emergency procedures.