4-Amino-3-methyl-5-nitrobenzoic acid(CAS: 37901-94-3)

4-Amino-3-methyl-5-nitrobenzoic acid is a crystalline solid with a molecular weight of approximately 229.12 g/mol. It is slightly soluble in water, with a solubility of about 0.1 g/100 mL at 20°C. This compound is reactive towards bases and reducing agents. It can be used in various chemical reactions due to its amino and nitro functionalities.

4-Amino-3-methyl-5-nitrobenzoic acid is typically synthesized via nitration of 4-amino-3-methylbenzoic acid followed by acetylation. Common methods include the use of nitric acid in the presence of sulfuric acid as a catalyst. The yield is around 85%, and the reaction is highly selective due to the presence of substituents.

4-Amino-3-methyl-5-nitrobenzoic acid is primarily used in the pharmaceutical industry for the synthesis of various drug intermediates. It is also utilized in the polymer industry for the production of speciality polymers and in the sensor industry for functional materials.

When handling 4-Amino-3-methyl-5-nitrobenzoic acid, it is important to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. It should be stored in a fume hood and proper ventilation should be maintained. Spills should be cleaned up with care, and the Material Safety Data Sheet (MSDS) should be consulted for specific safety guidelines.