4-Methyl-6-quinolinecarboxylic acid(CAS: 7101-68-0)

4-Methyl-6-quinolinecarboxylic acid is a white or slightly yellow crystalline solid with a molecular weight of 197.17 g/mol. It has a solubility of 5.2 g/L in water and is moderately soluble in common organic solvents like ethanol and acetonitrile. The compound is relatively stable, but it may undergo acid-catalyzed reactions under certain conditions. It is not highly reactive under normal laboratory conditions.

4-Methyl-6-quinolinecarboxylic acid is typically synthesized by the reaction of 4-methyl-6-quinolone with hydrochloric acid. This involves treating 4-methyl-6-quinolone with concentrated hydrochloric acid in a stirred reactor. The reaction is exothermic and should be carried out at a controlled temperature to achieve high yield and selectivity. Other methods include the direct oxidation of 4-methylquinoline using suitable oxidizing agents.

4-Methyl-6-quinolinecarboxylic acid finds applications in various industries. It is used as a precursor in the pharmaceutical industry for the synthesis of certain drugs. In the polymer industry, it serves as a functional monomer for the preparation of advanced materials. Additionally, it is used in the development of sensors and as a component in the semiconductor industry due to its chemical and structural properties.

When handling 4-Methyl-6-quinolinecarboxylic acid (CAS: 7101-68-0), it is essential to wear appropriate personal protective equipment (PPE), including gloves and safety goggles. It should be stored in a well-ventilated area and handled in a fume hood to minimize exposure. In case of a spill, it is important to clean up promptly using appropriate absorbent materials and follow proper waste disposal procedures. Always refer to the Safety Data Sheet (SDS) for detailed guidance on safe handling and storage.