Understanding the detailed chemical properties and diverse applications of key intermediates like 3,5-Dichloroiodobenzene (CAS: 3032-81-3) is fundamental for chemists and engineers in various industrial sectors. This compound, identified by its molecular formula C6H3Cl2I, is a staple in advanced organic synthesis, and its sourcing demands careful consideration of quality and supplier reliability.

The physical characteristics of 3,5-Dichloroiodobenzene are noteworthy. It typically presents as a yellow powder with a defined melting point range of 56-58 °C. This solid form, coupled with its relative stability when stored in a dry, dark environment at room temperature, makes it convenient for laboratory and industrial handling. Its molecular weight is approximately 272.90 g/mol. The presence of two electron-withdrawing chlorine atoms and a reactive iodine atom on the benzene ring imparts specific electronic and steric properties, dictating its reactivity in chemical transformations.

The primary application of 3,5-Dichloroiodobenzene lies in its utility as a synthetic intermediate. The carbon-iodine bond is significantly weaker than carbon-chlorine bonds, making it the preferred site for oxidative addition in transition metal catalysis. This allows for selective functionalization via reactions like Suzuki, Sonogashira, and Heck couplings, enabling the construction of more complex organic molecules. These are crucial steps in the synthesis of pharmaceuticals, agrochemicals, and materials with specialized properties.

For professionals looking to buy 3,5-Dichloroiodobenzene, identifying a manufacturer that guarantees high purity (e.g., 97% or 99%) is paramount. This ensures predictable reaction outcomes and high yields, which are critical for cost-effectiveness in large-scale production. Procuring from established chemical suppliers in China offers access to competitive pricing and a reliable supply chain. Companies often provide detailed technical specifications, including spectroscopic data like 13C NMR, which can be vital for verification and quality control. When considering your next synthesis project, ensure you are sourcing from a reputable manufacturer to guarantee the quality and availability of your essential intermediates.