2,1,3-Benzothiadiazol-5-amine(CAS: 874-37-3)

2,1,3-Benzothiadiazol-5-amine (CAS: 874-37-3) is a crystalline white powder with a molecular weight of approximately 158.21 g/mol. It has a limited solubility in water (0.1 g/L at 25°C). The compound is moderately reactive, particularly in the presence of acids or bases, and can undergo substitution reactions. It is slightly soluble in common organic solvents like ethanol and acetone.

2,1,3-Benzothiadiazol-5-amine is commonly synthesized via the reaction of 1,3-benzothiazol-2-one with ammonia or amines under basic conditions. The process involves heating the 1,3-benzothiazol-2-one with excess ammonia or an amine in a non-aqueous solvent like methanol or ethanol. The yield is typically high, around 70-80%, and the reaction is conducted with a catalyst such as sodium hydroxide to enhance selectivity and yield.

2,1,3-Benzothiadiazol-5-amine (CAS: 874-37-3) is used in various industries. It is a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and antifungal drugs. It also finds applications in the polymer industry for modifying the properties of polymers, in sensor technology for detecting various gases, and in semiconductor manufacturing as a dopant.

When handling 2,1,3-Benzothiadiazol-5-amine (CAS: 874-37-3), it is important to use appropriate personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. The compound should be stored in a cool, dry place away from heat sources and strong acids or bases. It should be handled in a well-ventilated area or a fume hood to avoid inhalation. In case of a spill, use appropriate absorbent materials and consult the Safety Data Sheet (SDS) for proper cleanup procedures.