3,3',4,4',5,5'-Hexachloro(~13~C_12_)biphenyl(CAS: 16176-68-4)

3,3',4,4',5,5'-Hexachlorobiphenyl is a crystalline solid with a high melting point and low solubility in water. It has a molecular weight of approximately 364.83 g/mol. This compound is highly reactive with many organic compounds and is considered a persistent environmental pollutant.

3,3',4,4',5,5'-Hexachlorobiphenyl is typically synthesized through a chlorination reaction of biphenyl in the presence of a Lewis acid catalyst. The process involves multiple steps to achieve the desired hexachlorinated product with good yield and selectivity.

3,3',4,4',5,5'-Hexachlorobiphenyl has been historically used in the production of flame retardants, lubricants, and as a precursor in the synthesis of other chlorinated compounds. However, its use has been largely discontinued due to environmental concerns and the existence of more environmentally friendly alternatives.

When handling 3,3',4,4',5,5'-Hexachlorobiphenyl, it is essential to use personal protective equipment such as gloves, goggles, and a lab coat. Store it in a cool, dry place away from heat sources and flammable materials. Use a fume hood during any manipulations, and follow proper spill cleanup procedures as outlined in the Safety Data Sheet (SDS).