2,5-Dichloroterephthalaldehyde(CAS: 46052-84-0)

2,5-Dichloroterephthalaldehyde is a white crystalline solid with a molecular weight of approximately 223.02 g/mol. It is poorly soluble in water but soluble in common organic solvents such as acetone and ethanol. It is chemically reactive, particularly towards nucleophilic substitution and condensation reactions.

2,5-Dichloroterephthalaldehyde is typically synthesized by the chlorination of 2,5-dicarboxyaldehyde. This reaction usually involves the use of chlorine gas in the presence of a catalyst such as phosphoric acid. The reaction is selective and yields high purity product.

2,5-Dichloroterephthalaldehyde is used in the pharmaceutical, polymer, and chemical sensing industries. It serves as a crucial intermediate in the production of various drugs, as well as in the synthesis of semiconducting materials and polymer precursors.

When handling 2,5-Dichloroterephthalaldehyde, proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. Work should be conducted in a well-ventilated area or fume hood. Spills should be handled with appropriate absorbents and disposed of according to local regulations. Always refer to the safety data sheet (SDS) for detailed handling instructions.