2,2-Dihydroxy-4,4-dimethoxybenzophenone: A Powerful UV Absorber and Light Stabilizer

UV radiation is a major cause of material degradation, discoloration, and other forms of damage. It affects not only plastics, coatings, and fibers but also human skin and eyes. Therefore, UV protection is essential for many applications, from outdoor furniture and automotive parts to personal care products and medical devices. One of the most effective and widely used UV absorbers and light stabilizers is 2,2-dihydroxy-4,4-dimethoxybenzophenone, also known as UV Absorber BP-6, UV Absorber UVBP-6, Light Stabilizer BP-6, and other names.

Chemical Properties and Applications

2,2-Dihydroxy-4,4-dimethoxybenzophenone is a white crystalline powder with a molecular weight of 274.27 g/mol and a melting point of 138-142°C. Its chemical structure consists of two hydroxy groups, two methoxy groups, and a benzophenone moiety, which makes it a benzophenone derivative. This compound is soluble in most organic solvents, such as ethanol, acetone, chloroform, and toluene, but insoluble in water. Its UV absorption spectrum ranges from 280 to 400 nm, with a maximum at 324 nm.

The main function of 2,2-dihydroxy-4,4-dimethoxybenzophenone is to absorb UV radiation, especially in the range of 290-400 nm, which is the most harmful to materials and living tissues. By absorbing the UV photons, this compound prevents them from reaching the substrate and causing photochemical reactions, such as crosslinking, chain scission, oxidation, and yellowing. This, in turn, improves the durability, color stability, and transparency of the substrate, and prolongs its service life. Moreover, 2,2-dihydroxy-4,4-dimethoxybenzophenone can act as a free radical scavenger, which inhibits the propagation of oxidative degradation.

2,2-Dihydroxy-4,4-dimethoxybenzophenone is used in a variety of applications that require UV protection and light stabilization. Some of the most common applications are:

- Plastics: 2,2-Dihydroxy-4,4-dimethoxybenzophenone is widely used in polyolefins, PVC, polystyrene, ABS, PET, and other polymers to prevent their degradation and discoloration caused by UV exposure. It can be added to the polymer matrix during the manufacturing process or applied as a surface coating. The recommended dosage is usually between 0.1 and 2.0%, depending on the substrate, the processing conditions, and the desired performance.n- Coatings: 2,2-Dihydroxy-4,4-dimethoxybenzophenone is also used in paints, varnishes, and other coatings to protect the underlying substrate from UV damage and color fading. It can be incorporated into the coating formulation or applied as a topcoat. The recommended dosage is usually between 0.5 and 5.0%, depending on the coating type, the substrate, and the exposure conditions.n- Personal care: 2,2-Dihydroxy-4,4-dimethoxybenzophenone is a common ingredient in sunscreens, moisturizers, lip balms, and other cosmetic products that provide UV protection to the skin and lips. It can absorb both UVA and UVB radiation and has a low skin irritation potential. The recommended dosage is usually between 1.0 and 5.0%, depending on the SPF value and the formulation.n- Other applications: 2,2-Dihydroxy-4,4-dimethoxybenzophenone can also be used in other applications, such as adhesives, fibers, films, and electronics, where UV protection and light stabilization are necessary.

Manufacturer and Supplier

INNO SPECIALTY CHEMICALS is a leading manufacturer and supplier of 2,2-dihydroxy-4,4-dimethoxybenzophenone and other specialty chemicals from China. With over 20 years of experience in the chemical industry, INNO specializes in the research, development, production, and sales of UV absorbers, light stabilizers, antioxidants, flame retardants, and other additives for various industries. Its products are widely used in China, Europe, North America, South America, Asia Pacific, and other regions. INNO's mission is to provide high-quality, cost-effective, and eco-friendly solutions to its customers and partners.

Conclusion

2,2-Dihydroxy-4,4-dimethoxybenzophenone is a versatile and effective UV absorber and light stabilizer that can enhance the performance and durability of many materials and products. Its unique chemical structure and properties make it suitable for a wide range of applications, from plastics and coatings to personal care products and medical devices. As a reliable manufacturer and supplier, INNO SPECIALTY CHEMICALS can offer customized solutions and technical support to meet the specific needs of its customers.

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