7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid(CAS: 68077-26-9)

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid is a crystalline compound with a molecular weight of approximately 264.7 g/mol. It has poor water solubility but good solubility in organic solvents like dimethylformamide. The compound is relatively stable but can react with strong bases to form corresponding salts. It is not flammable and has a low reactivity under normal conditions.

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid is typically synthesized from 1-ethyl-6-fluoro-3-quinolinecarboxylic acid using chlorination. The reaction involves treatment of the quinoline derivative with chlorine gas in the presence of a suitable catalyst like aluminum chloride. The yield is generally around 70-80%, and the product is purified by recrystallization from a suitable solvent.

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid is used primarily in the pharmaceutical industry for the synthesis of various bioactive compounds. It is also used in the chemical industry for the development of new materials and in analytical chemistry for the preparation of reagents and standards.

When handling 7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid, it is important to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The compound should be stored in a cool, dry place away from direct sunlight. In case of a spill, it should be cleaned up immediately using appropriate absorbent materials. For detailed safety information, refer to the Safety Data Sheet (SDS).