Methylene Bis-Benzotriazolyl Tetramethylbutylphenol
Also Known As:
- Bisoctrizole
- UV-360
- Tinosorb M (marketed by BASF)
- Parsol Max (marketed by DSM Nutritional Products)
- Eversorb M (marketed by Everlight Chemical)
- Milestab 360 (marketed by MPI)
What Is It? Methylene Bis-Benzotriazolyl Tetramethylbutylphenol is an organic compound that functions as a broad-spectrum ultraviolet (UV) absorber. It is a phenolic benzotriazole that absorbs, reflects, and scatters both UVA and UVB rays. This compound is particularly valued for its ability to stabilize other UV absorbers, enhancing their effectiveness.
What Makes It Different? What sets Methylene Bis-Benzotriazolyl Tetramethylbutylphenol apart is its hybrid nature. Unlike other organic UV absorbers that dissolve in either the oily or aqueous phases, this compound is formulated as microfine organic particles (<200 nm). This unique formulation allows it to be used in a suspension, providing superior UV protection and stability. Additionally, it shows minimal photodegradation, meaning it remains effective for longer periods under sunlight exposure.
Where Does It Come From? This compound is synthesized through chemical processes involving benzotriazole derivatives. It is produced by several chemical companies and marketed under various trade names, depending on the manufacturer.
Where Is It Used? Methylene Bis-Benzotriazolyl Tetramethylbutylphenol is primarily used in sunscreen products due to its excellent UV absorption properties. It is also found in other cosmetic and personal care products, such as lotions, creams, and makeup, to protect the skin from UV radiation. In the European Union, it is approved as a UV filter in cosmetics at a maximum concentration of 10%.
Is It Sustainable? The sustainability of Methylene Bis-Benzotriazolyl Tetramethylbutylphenol is a complex issue. While it provides significant benefits in protecting skin from harmful UV radiation, its production and use raise several environmental concerns.
Sustainability Issues Related to Its Production:
- Chemical Synthesis: The production of this compound involves several chemical reactions that may generate hazardous by-products. Proper management and disposal of these by-products are crucial to minimize environmental impact.
- Resource Use: The synthesis of benzotriazole derivatives requires raw materials that may be derived from non-renewable resources, contributing to resource depletion.
- Environmental Persistence: Although Methylene Bis-Benzotriazolyl Tetramethylbutylphenol is effective in sunscreens, its persistence in the environment can be problematic. It may accumulate in water bodies, potentially affecting aquatic life.
- Regulatory Challenges: In some regions, regulatory bodies have not yet approved this compound for use in sunscreens, which may limit its adoption and necessitate the use of alternative UV filters that could have different environmental impacts.
In summary, while Methylene Bis-Benzotriazolyl Tetramethylbutylphenol offers excellent UV protection and stability, its sustainability profile requires careful consideration of its production processes and environmental impact. Efforts to improve the sustainability of its synthesis and reduce its ecological footprint are essential for its continued use in cosmetic products.