C6H4Br2

C6H4Br2, also known as 1,2-dibromo-4-nitrobenzene, is an organic compound with the molecular formula C6H4Br2. It is a derivative of benzene, where two hydrogen atoms have been replaced by bromine atoms, and one hydrogen atom has been replaced by a nitro group. The compound is a yellow crystalline solid at room temperature.

C6H4Br2 is primarily used as an intermediate in the synthesis of other organic compounds. It is also used in the production of dyes, pesticides, and pharmaceuticals. The compound is toxic and can cause skin and eye irritation. It is also a potential carcinogen, and exposure should be avoided.

The synthesis of C6H4Br2 typically involves the nitration of bromobenzene, followed by bromination of the resulting nitro compound. The compound can be purified by recrystallization from ethanol.

C6H4Br2 is soluble in organic solvents such as ethanol and acetone, but insoluble in water. It has a melting point of 105-107°C and a boiling point of 270°C at 760 mmHg. The compound is stable under normal conditions, but it can decompose upon heating or exposure to strong oxidizing agents.

In summary, C6H4Br2 is a yellow crystalline solid used as an intermediate in the synthesis of other organic compounds. It is toxic and a potential carcinogen, and its use should be carefully controlled. The compound is soluble in organic solvents and has a melting point of 105-107°C.