1,10-Phenanthroline-2,9-dicarboxylic acid(CAS: 57709-61-2)

1,10-Phenanthroline-2,9-dicarboxylic acid is a yellow crystalline solid with a molecular weight of 250.22 g/mol. It is slightly soluble in water and ethanol. It is chemically reactive, showing properties of both a carboxylic acid and a phenanthroline derivative. It forms salts with various metals and can undergo reactions such as esterification and reduction.

1,10-Phenanthroline-2,9-dicarboxylic acid is typically synthesized by the oxidation of 1,10-phenanthroline with nitric acid or potassium permanganate. Common methods include the oxidation of 1,10-phenanthroline in sulfuric acid or phosphoric acid medium. The product is purified by recrystallization from ethanol or water, and yields are generally around 80-90%.

1,10-Phenanthroline-2,9-dicarboxylic acid is widely used in the pharmaceutical industry for metal complex formation and as a chelating agent. It is also used in the synthesis of dyes and pigments, as a reagent in analytical chemistry, and in the production of sensors and semiconductors. Its use in polymer synthesis and as a ligand in coordination chemistry is also significant.

When handling 1,10-Phenanthroline-2,9-dicarboxylic acid, wear appropriate personal protective equipment (PPE) including gloves, safety goggles, and a lab coat. Work in a well-ventilated area or fume hood to avoid inhalation. Spills should be cleaned up using appropriate absorbents and the area should be washed with water. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal information.