Ultraviolet Absorbent UV-1164
[CAS# 2725-22-6]

Identification

• Classification: Catalysts and additives >> UV absorber
• Name: Ultraviolet Absorbent UV-1164
• Synonyms: 2-(4,6-Bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol
• Molecular Formula: C₃₃H₃₉N₃O₂
• Molecular Weight: 509.69
• CAS Registry Number: 2725-22-6
• EC Number: 608-067-3
• SMILES: CCCCCCCCOC1=CC(=C(C=C1)C2=NC(=NC(=N2)C3=C(C=C(C=C3)C)C)C4=C(C=C(C=C4)C)C)O

Properties

• Density: 1.1±0.1 g/cm³, Calc.^*
• Melting point: 83.5-84 °C
• Index of Refraction: 1.575, Calc.^*
• Boiling Point: 695.2±65.0 °C (760 mmHg), Calc.^*
• Flash Point: 374.3±34.3 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07;GHS09 Warning
• Risk Statements: H315-H319-H411
• Safety Statements: P264-P264+P265-P273-P280-P302+P352-P305+P351+P338-P321-P332+P317-P337+P317-P362+P364-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319

Discovery and Applications

Ultraviolet Absorbent UV-1164, also known as 2-Hydroxy-4-methoxybenzophenone, is a chemical compound widely utilized as a UV stabilizer and absorber in various industries. This compound belongs to a class of benzophenone derivatives and is particularly valued for its ability to protect materials from the harmful effects of ultraviolet (UV) radiation. The discovery and development of UV-1164 have enabled advancements in formulations across several sectors, including plastics, coatings, cosmetics, and textiles.

The synthesis of UV-1164 dates back to the mid-20th century when researchers began to explore the properties of benzophenone derivatives as UV filters. The unique molecular structure of UV-1164, which includes both hydroxy and methoxy functional groups, allows it to effectively absorb UV radiation, particularly in the UV-B range (280-320 nm). This capability makes it particularly useful in applications where materials are exposed to sunlight, as UV radiation can lead to degradation, discoloration, and loss of mechanical properties over time.

In the plastics industry, UV-1164 is widely used as a UV stabilizer in various polymer formulations, including polyethylene, polypropylene, and polyvinyl chloride (PVC). When incorporated into these materials, UV-1164 helps to minimize the effects of UV-induced degradation, such as brittleness, yellowing, and loss of tensile strength. The ability of this compound to absorb harmful UV radiation enhances the longevity and performance of plastic products used in outdoor applications, including agricultural films, automotive components, and consumer goods.

In coatings and paints, UV-1164 plays a crucial role in improving the durability and aesthetic qualities of finished products. By adding UV-1164 to formulations, manufacturers can create paints that resist fading and maintain their color over extended periods of exposure to sunlight. This property is particularly important in applications such as exterior coatings, where protection against UV degradation is essential for preserving the appearance and functionality of surfaces. As a result, UV-1164 is commonly found in architectural coatings, automotive finishes, and industrial paints.

The cosmetics and personal care industries also benefit from the use of UV-1164, particularly in sun protection formulations. Its ability to absorb UV radiation makes it a valuable ingredient in sunscreens and other skincare products, where it contributes to the protection of the skin from UV-induced damage, such as sunburn and premature aging. Formulators often incorporate UV-1164 in combination with other UV filters to achieve broad-spectrum protection, ensuring that products provide effective defense against both UV-A and UV-B radiation.

Furthermore, UV-1164 has applications in the textile industry, where it is used to enhance the UV resistance of fabrics and fibers. Textiles treated with UV-1164 maintain their color and structural integrity when exposed to sunlight, making them ideal for outdoor clothing, upholstery, and awnings. The incorporation of this UV absorber into textile formulations helps manufacturers meet the increasing demand for UV-protective clothing and materials, providing consumers with products that offer both comfort and safety.

While UV-1164 is highly effective in its applications, it is essential to consider environmental and safety aspects associated with its use. Regulatory agencies have established guidelines for the safe handling and use of UV absorbents, and manufacturers must adhere to these regulations to mitigate potential risks. Additionally, ongoing research focuses on developing more sustainable and environmentally friendly alternatives to traditional UV stabilizers, including bio-based compounds and less hazardous materials.

In conclusion, Ultraviolet Absorbent UV-1164 is a versatile and valuable chemical compound that plays a crucial role in protecting materials from UV radiation in various industries. Its applications span plastics, coatings, cosmetics, and textiles, contributing to the durability, aesthetics, and performance of products exposed to sunlight. As research continues to evolve, UV-1164 remains an essential component in the formulation of products designed to withstand the damaging effects of UV radiation, ensuring the longevity and safety of everyday materials.

References

(1) www.epa.gov/tsca-inventory.