3-Amino-4-chlorobenzenesulfonic acid(CAS: 98-36-2)

3-Amino-4-chlorobenzenesulfonic acid is a crystalline compound with a molecular weight of approximately 231.63 g/mol. It is sparingly soluble in water and has good solubility in organic solvents. The compound exhibits basic properties due to the amino group and is moderately reactive with electrophiles. It decomposes above 300°C.

3-Amino-4-chlorobenzenesulfonic acid is typically synthesized by the reaction of 4-chlorobenzenesulfonyl chloride with ethylene diamine. The reaction is performed in the presence of a catalyst, such as a Lewis acid, and the product is obtained with good yield and selectivity.

3-Amino-4-chlorobenzenesulfonic acid is used in the pharmaceutical industry for the synthesis of various drugs, in the polymer industry for the production of functional polymers, and in the sensor industry for the development of gas sensing devices. It is also employed in semiconductor applications for etching processes.

When handling 3-Amino-4-chlorobenzenesulfonic acid, it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. The compound should be stored in a well-ventilated area away from heat sources and incompatible materials. In case of a spill, it should be cleaned up using appropriate methods, and safety data sheets (SDS) should be consulted for detailed information.