The chemical compound 4,4'-Dichlorobenzophenone, identified by CAS number 90-98-2, plays a pivotal role in enabling advancements within critical industrial sectors, particularly in pharmaceuticals and advanced polymer development. As a highly valuable fine chemical intermediate, its synthesis and specific applications are central to creating sophisticated end products. For companies aiming to innovate, understanding the capabilities of this compound is essential.

The synthesis of 4,4'-Dichlorobenzophenone is a well-established process. Typically produced through the Friedel-Crafts acylation of chlorobenzene with 4-chlorobenzoyl chloride, it can be manufactured with high purity. This purity is a critical factor, especially for its extensive use as a pharmaceutical intermediate. Drug developers rely on the consistent quality of 4,4'-Dichlorobenzophenone to ensure the efficacy and safety of their therapeutic agents. When making decisions to buy 4,4'-Dichlorobenzophenone, prioritizing suppliers with stringent quality control and clear traceability is paramount.

The versatility of 4,4'-Dichlorobenzophenone extends significantly into the realm of polymer science. It is a key monomer used in the synthesis of high-performance polymers like polyether-polyketones (PEKs). These materials are prized for their exceptional thermal stability, chemical resistance, and mechanical strength, making them indispensable in demanding sectors such as aerospace, automotive engineering, and medical devices. The consistent performance of these advanced polymers is directly linked to the quality of the intermediates like 4,4'-Dichlorobenzophenone used in their production.

In addition to its polymer applications, 4,4'-Dichlorobenzophenone remains a crucial intermediate in the pharmaceutical industry for creating a wide range of drug molecules. It also finds application in the agrochemical sector for crop protection agents and in the dyestuffs industry for colorant synthesis. This broad utility confirms its status as a foundational chemical building block.

The distinctive chemical properties of 4,4'-Dichlorobenzophenone include its appearance as a white to off-white crystalline powder and a melting point between 144-146 °C. Its solubility in hot acetone facilitates processing. These characteristics, coupled with its reactivity, make it an ideal intermediate for complex organic synthesis. Proper storage conditions, such as keeping it dry and in a well-ventilated place, are important for maintaining its integrity.

In summary, 4,4'-Dichlorobenzophenone (CAS 90-98-2) is a compound that significantly drives innovation in both the pharmaceutical and polymer industries. Its reliable synthesis and diverse applications, from life-saving drugs to high-performance materials, underscore its enduring value as a critical intermediate in the chemical supply chain.