4-Bromophenol (CAS No. 106 - 41 - 2) is a chemical compound with the molecular formula C₆H₅BrO. It appears as white to light - yellow crystals or powder. This product is offered by our factory at a good price. The melting point of 4 - Bromophenol is around 64 - 66 °C, and its boiling point is approximately 238 °C. It has a density of about 1.634 g/cm³. It is sparingly soluble in water but soluble in organic solvents such as ethanol, ether, and benzene. The purity of our factory - supplied 4 - Bromophenol can meet high - quality standards, typically above 98%, which ensures its performance in various applications.
4 - Bromophenol has a wide range of applications in different industries. In the field of organic synthesis, it serves as an important intermediate. It can be used in the preparation of various pharmaceuticals. For example, it can participate in the synthesis of certain antibacterial and anti - inflammatory drugs. By introducing the bromophenol moiety into the molecular structure of a drug, it may enhance the drug's activity and selectivity.
In the dye industry, 4 - Bromophenol is used in the production of some high - performance dyes. The bromine atom in its structure can affect the color and light - fastness of the dyes. It can also be used in the synthesis of flame retardants. The brominated structure of 4 - Bromophenol can endow the flame retardants with better flame - retardant performance, which is widely used in plastics, textiles, and other materials to improve their fire safety.
When using 4 - Bromophenol, it is necessary to follow strict safety procedures. First, wear appropriate personal protective equipment, including gloves, goggles, and a lab coat. In a laboratory or industrial environment, it should be used in a well - ventilated area to avoid the inhalation of dust or vapors.
In organic synthesis reactions, the amount of 4 - Bromophenol used should be accurately measured according to the reaction equation and the desired yield. It is usually added to the reaction system under stirring conditions, and the reaction temperature, time, and other parameters should be carefully controlled. For example, in a substitution reaction, the reaction temperature may need to be maintained at a certain range to ensure the smooth progress of the reaction.
When storing 4 - Bromophenol, it should be kept in a cool, dry place, away from sources of ignition and oxidizing agents. It is best to store it in a tightly sealed container to prevent moisture absorption and oxidation.
Pharmaceutical Synthesis Case: A pharmaceutical company was developing a new antibacterial drug. They used 4 - Bromophenol as an intermediate in the multi - step synthesis process. First, 4 - Bromophenol was reacted with a specific amine compound under basic conditions to form an intermediate product. Then, through a series of subsequent reactions such as acylation and cyclization, the final target drug molecule was obtained. The use of our high - purity 4 - Bromophenol ensured the high yield and quality of each step of the synthesis, reducing the number of impurities and improving the efficiency of the overall synthesis process.
Dye Production Case: A dye manufacturer used 4 - Bromophenol in the production of a blue - green dye. They combined 4 - Bromophenol with other aromatic compounds through a coupling reaction. The bromine atom in 4 - Bromophenol made the dye have better light - fastness and color saturation. After several tests and optimizations of the reaction conditions, they successfully produced a high - quality dye that met the market requirements.
Flame Retardant Synthesis Case: In a plastics manufacturing company, they used 4 - Bromophenol to synthesize a brominated flame retardant for polypropylene plastics. By reacting 4 - Bromophenol with other flame - retardant monomers, they obtained a new - type flame retardant. After adding this flame retardant to polypropylene, the oxygen index of the plastics increased significantly, and the burning time was shortened, greatly improving the fire - safety performance of the plastics.
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