The product is High Quality 4 - chlorobenzenesulfonyl chloride with the CAS number 98 - 60 - 2. It is known for its high quality and is offered at the best price in the market.
4 - chlorobenzenesulfonyl chloride is a white to light yellow crystalline powder. Its molecular formula is C₆H₄Cl₂O₂S, and its molecular weight is approximately 211.06 g/mol. This compound has a melting point in the range of 53 - 56 °C and a boiling point around 279 - 281 °C. It is soluble in common organic solvents such as chloroform, toluene, and dichloromethane but is insoluble in water.
4 - chlorobenzenesulfonyl chloride is a versatile chemical intermediate widely used in various industries.
In the pharmaceutical industry, it serves as a key building block for the synthesis of numerous drugs. It can be used to introduce the 4 - chlorobenzenesulfonyl group into drug molecules, which may enhance the biological activity, stability, or solubility of the drugs. For example, some antibacterial and anti - inflammatory drugs are synthesized using this compound.
In the agrochemical field, it is employed in the production of pesticides and herbicides. The introduction of the 4 - chlorobenzenesulfonyl group can improve the efficacy and selectivity of these agricultural chemicals, helping to protect crops from pests and weeds.
It is also used in the synthesis of dyes and pigments. The unique chemical properties of 4 - chlorobenzenesulfonyl chloride allow it to participate in reactions that form colored compounds with excellent light - fastness and stability, making it suitable for a wide range of coloring applications.
When using 4 - chlorobenzenesulfonyl chloride, strict safety precautions should be taken. It is irritant to the skin, eyes, and respiratory tract. Therefore, appropriate personal protective equipment such as gloves, goggles, and a respirator should be worn during handling.
The compound should be stored in a cool, dry, and well - ventilated area, away from sources of heat, ignition, and incompatible materials. It should be kept in a tightly sealed container to prevent moisture absorption and contamination.
In a laboratory or industrial setting, when using 4 - chlorobenzenesulfonyl chloride for chemical synthesis, it is usually added slowly to the reaction mixture under appropriate reaction conditions (such as temperature, pressure, and solvent). The reaction progress should be monitored carefully, and appropriate post - treatment procedures should be carried out to obtain the desired product.
Case 1: Pharmaceutical Synthesis
A pharmaceutical company was developing a new antibacterial drug. They used 4 - chlorobenzenesulfonyl chloride as an intermediate. In the reaction, 4 - chlorobenzenesulfonyl chloride was reacted with an amine compound in an organic solvent under controlled temperature and pH conditions. After a series of purification steps, the final drug product was obtained with high yield and purity. In clinical trials, the drug showed excellent antibacterial activity against a wide range of bacteria, and its safety profile was also satisfactory.
Case 2: Agrochemical Production
An agrochemical manufacturer wanted to develop a new herbicide. They incorporated 4 - chlorobenzenesulfonyl chloride into the synthesis process. The reaction involved multiple steps, including the formation of an intermediate with specific functional groups. The final herbicide product was tested in the field. It was found to be highly effective in controlling weeds while having minimal impact on the target crops. The use of 4 - chlorobenzenesulfonyl chloride in this synthesis contributed to the herbicide's high performance.
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