2-Amino-1,4-benzenedisulfonic acid(CAS: 98-44-2)

2-Amino-1,4-benzenedisulfonic acid is a crystalline solid with a molecular weight of approximately 216.18 g/mol. It is slightly soluble in water and is known for its reactivity towards metal ions and its ability to form complexes. This compound exhibits moderate basicity due to the amino group and has a high affinity for sulfuric acid groups.

2-Amino-1,4-benzenedisulfonic acid is typically synthesized by the reaction of benzene with sulfur trioxide followed by reaction with ammonia. Commonly, a mixture of benzene, sulfur trioxide, and ammonia is heated under pressure to produce the desired compound. This method provides a good yield and selectivity, although careful handling of the reactants is necessary.

2-Amino-1,4-benzenedisulfonic acid is widely used in the pharmaceutical industry for the synthesis of various drugs, in the polymer industry for the production of special fibers, and in the semiconductor industry for the fabrication of electronic components. It also finds applications in the development of sensors and as a ligand in analytical chemistry.

When handling 2-Amino-1,4-benzenedisulfonic acid, it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The compound should be stored in a cool, dry place away from direct sunlight. In case of a spill, it is recommended to use a fume hood and follow proper spill cleanup procedures. Always refer to the Safety Data Sheet (SDS) for detailed safety information and guidelines.