3-Chloro-2-nitrobenzoic acid(CAS: 4771-47-5)

3-Chloro-2-nitrobenzoic acid is a crystalline solid with a molecular weight of approximately 215.03 g/mol. It has a melting point of 249-252°C. The compound is slightly soluble in water but more soluble in organic solvents like ethanol and acetone. It is chemically reactive, particularly with bases and reducing agents, due to the presence of both nitro and chlorine functional groups.

3-Chloro-2-nitrobenzoic acid can be synthesized through the nitration of 3-chlorobenzoic acid followed by acetylation and hydrolysis. The nitration step involves the reaction of 3-chlorobenzoic acid with nitric acid in the presence of a sulfuric acid catalyst. The yield is typically around 70-80%, and the product can be purified by recrystallization.

3-Chloro-2-nitrobenzoic acid is used in the pharmaceutical industry as an intermediate for the synthesis of certain drugs. It also finds applications in the production of dyes and pigments, as well as in the synthesis of various organic compounds for use in polymers and sensors. Additionally, it can be used in the electronics industry for semiconductor manufacturing processes.

When handling 3-Chloro-2-nitrobenzoic acid, it is crucial to wear appropriate personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. It should be handled in a fume hood to minimize inhalation risks. Spills should be immediately neutralized with an appropriate base before cleaning up. Always refer to the Safety Data Sheet (SDS) for detailed safety information and emergency procedures.