4-Formyl-1,3-benzenedisulfonic acid(CAS: 88-39-1)

4-Formyl-1,3-benzenedisulfonic acid is a crystalline solid with a molecular weight of approximately 222.13 g/mol. It is soluble in water and less soluble in organic solvents. Chemically, it is highly reactive due to the presence of the carboxyl and sulfonic acid groups, which can participate in various chemical reactions such as esterification, amide formation, and sulfonation.

4-Formyl-1,3-benzenedisulfonic acid is typically synthesized by the sulfonation of 1,3-benzenedicarboxylic acid with sulfur trioxide (SO₃) or oleum. The reaction can be conducted under controlled conditions to ensure high yield and selectivity. Catalysts such as pyridine or anhydrous sulfuric acid can be used to improve the reaction efficiency and reduce side products.

4-Formyl-1,3-benzenedisulfonic acid is used in various industries. It is a key component in the production of dyes, pigments, and pharmaceuticals due to its ability to form stable complexes. Additionally, it finds applications in the synthesis of polymers, as a sensor material, and in the semiconductor industry for its unique electronic properties.

When handling 4-Formyl-1,3-benzenedisulfonic acid (CAS: 88-39-1), appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. The compound should be handled in a well-ventilated area or fume hood due to its volatility and potential for inhalation. Spills should be cleaned up using appropriate chemical spill kits, and the Material Safety Data Sheet (MSDS/SDS) should be consulted for detailed emergency procedures.