4,4-Bis(diethylamino) benzophenone, also widely recognized as Photoinitiator EMK (CAS: 90-93-7), is a compound of significant industrial importance. Characterized as a light yellow powder, it possesses a molecular formula of C21H28N2O and a molecular weight of 324.46. NINGBO INNO PHARMCHEM CO.,LTD. is a prominent supplier of this chemical, known for its high purity, typically exceeding 99%, which is critical for its various applications.

The compound exhibits a melting point range of approximately 89-92°C (lit.) with factory standards often refining this to 94.0-97.0°C, ensuring consistent product quality. Its density is around 1.048 g/cm³, and it has a high boiling point of 475.7ºC at 760 mmHg, indicating good thermal stability. These physical and chemical properties make 4,4-Bis(diethylamino) benzophenone well-suited for demanding industrial processes.

Its primary function is as a photoinitiator in UV-curable systems. When exposed to UV light, it efficiently generates free radicals, which catalyze the polymerization of monomers and oligomers. This capability is leveraged extensively in the formulation of UV-curable coatings, inks, and adhesives, enabling rapid drying and hardening. The use of 4,4-Bis(diethylamino) benzophenone contributes to improved production efficiency and enhanced performance characteristics of the final products, such as increased durability and chemical resistance. Businesses looking to buy Photoinitiator EMK for these applications will find its performance highly reliable.

Beyond its role in photochemistry, 4,4-Bis(diethylamino) benzophenone is a crucial intermediate in the synthesis of triarylmethane dyes, imparting vibrant colors to textiles, inks, and other materials. It also finds application as a photosensitizer in the film industry and as a specialized optical material in the microelectronics sector, underscoring its versatility. Furthermore, its utility extends to being a rubber crosslinking agent, enhancing the mechanical strength of rubber products.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing high-quality 4,4-Bis(diethylamino) benzophenone to meet the diverse needs of the global market. By ensuring rigorous quality control and offering comprehensive technical support, the company solidifies its position as a trusted manufacturer and supplier for industries reliant on this essential chemical compound.