3-Amino-4-methoxybenzenesulfonic acid(CAS: 98-42-0)

3-Amino-4-methoxybenzenesulfonic acid (CAS: 98-42-0) is a white to pale yellow crystalline solid with a molecular weight of approximately 237.19 g/mol. It has a solubility of about 2.6 g/L in water at 20°C. Chemically, it is moderately reactive, particularly with bases and nucleophiles. It is commonly used in analytical chemistry and pharmaceuticals due to its unique functional groups.

3-Amino-4-methoxybenzenesulfonic acid (CAS: 98-42-0) can be synthesized via the sulfonation of 4-methoxyaniline followed by coupling with benzenesulfonyl chloride. The reaction typically involves the use of a phase transfer catalyst and requires careful control of the reaction conditions to achieve high yield and selectivity. The overall process is moderately complex but straightforward for experienced chemists.

3-Amino-4-methoxybenzenesulfonic acid (CAS: 98-42-0) is primarily used in the pharmaceutical industry for the synthesis of drugs, particularly those that require specific functional groups for bioactivity. It is also found in polymer production, where its functional groups can enhance material properties. Additionally, it is employed in sensors and semiconductors for its reactivity and stability.

When handling 3-Amino-4-methoxybenzenesulfonic acid (CAS: 98-42-0), it is essential to wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. The compound should be stored in a dry, well-ventilated area, away from heat sources. In case of a spill, avoid inhalation of the dust and use a fume hood for safe handling. Always refer to the Material Safety Data Sheet (MSDS) for detailed safety information and emergency procedures.