34409-44-4

Molecular Formula：C28H46Cl2P2Pd

Molecular Weight：621.93800

PSA：27.18000

LogP：10.16060

2-Bromo-5-chloropyridine, CAS no: 34409-44-4, is a colorless to light yellow liquid organic compound with a pungent odor. It is miscible in most organic solvents, including ethanol and acetone, but insoluble in water.

2-Bromo-5-chloropyridine is used as an intermediate in the manufacturing of a wide variety of chemical compounds, such as dyes, pharmaceuticals, and agrochemicals. It is also used as a precursor for the production of 5-chloro-2-methoxypyridine, which is used in the synthesis of some plant growth regulators.

The compound is prepared through the reaction of pyridine with bromine and chlorine in aqueous solution. The reaction is conducted under acidic conditions at elevated temperatures.

2-Bromo-5-chloropyridine is mainly used in the manufacture of dye intermediates, such as 4-amino-2-chloro-5-bromopyridine, which is used in the production of azo dyes. It can also be used to prepare some pharmaceuticals, such as Telmisartan, which is used to treat hypertension.

The compound is toxic and can cause skin and eye irritation. It should be handled with care and stored in a cool, dry place away from heat and light. Protective clothing and goggles should be worn while handling it.