1-Benzothiophene-2-carboxylic acid(CAS: 6314-28-9)

1-Benzothiophene-2-carboxylic acid is a crystalline solid with a molecular weight of approximately 180.23 g/mol. It has a melting point of about 148-150°C and is slightly soluble in water. Chemically, it is moderately reactive, capable of undergoing esterification and condensation reactions. It shows good solubility in organic solvents like acetone and ethanol.

1-Benzothiophene-2-carboxylic acid is typically synthesized via the hydrolysis of 1-benzothiophene-2-carboxylic anhydride using a strong acid catalyst like sulfuric acid. The yield is around 85-90%, and the reaction involves the addition of water to the anhydride, followed by neutralization of the acid to form the carboxylic acid.

1-Benzothiophene-2-carboxylic acid is mainly used in the pharmaceutical industry for the synthesis of certain drugs. It is also used in the polymer industry as a monomer for creating high-performance polymers. Additionally, it finds applications in the semiconductor industry for the production of photoresists and in the sensor industry for the development of gas sensors.

When handling 1-Benzothiophene-2-carboxylic acid, it is essential to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Ensure the work is conducted in a well-ventilated environment or a fume hood. Spills should be carefully cleaned up using absorbent materials, followed by thorough rinsing with water. Refer to the Safety Data Sheet (SDS) for detailed information on handling and disposal.