Ningbo Inno Pharmchem Co., Ltd. is a leading manufacturer, supplier, and factory of 2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole, also known as BASF light stabilizer Tinuvin 329, BASF Tinuvin 329, Cytec Light Stabilizer CYASORB UV-5411, American Cytec UV-5411, Cyasorb UV-5411, UV Absorber UV-329, Light Stabilizer UV-329, Oxytriazole, 2-[2-Hydroxy-5-(1,1,3,3-tetramethylbutyl)phenyl]benzotriazole, 2-[2-Hydroxy-5-tert-octylphenyl)benzotriazole, 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol, Octrizole, Ultraviolet Absorber UV-329, and UV-329.

Properties

2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole is a high-performance ultraviolet absorber that can effectively absorb ultraviolet light in the 290-400nm range. It is a pale yellow crystalline powder with a molecular weight of 323.5 and a melting point of 105-110°C. Its solubility is 0.01%(w/v) in water, 0.03%(w/v) in methanol, 0.05%(w/v) in ethanol, 0.1%(w/v) in propylene glycol, and 1%(w/v) in acetone. It is stable to light, heat, and chemicals and can be used alone or in combination with other stabilizers, such as hindered amine light stabilizers (HALS), antioxidants, and metal deactivators.

Applications

2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole is widely used in the plastics, coatings, adhesives, sealants, fibers, and films industries to protect polymers and organic materials from UV-induced degradation, discoloration, cracking, and delamination. It can improve the weatherability, durability, and performance of various products, such as automotive parts, building materials, electrical appliances, sporting goods, and packaging. Its recommended dosage is usually 0.1-2%(w/w) based on the weight of the polymer, depending on the application, the desired level of protection, and the processing conditions. It can be added to the polymer melt, the coating formulation, or the adhesive solution, and mixed well before use.

Safety Data

2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole is generally regarded as safe (GRAS) for use in food-contact polymers, such as polyethylene, polypropylene, and polystyrene, under certain conditions, according to the US Food and Drug Administration (FDA) regulations. It is also approved for use in cosmetics and personal care products, such as lipsticks, eyeliners, and shampoos, by the European Union (EU) and the Japanese Ministry of Health, Labour and Welfare (MHLW). However, it may cause eye and skin irritation, respiratory sensitization, and environmental pollution if not handled properly. Therefore, it is recommended to wear protective clothing, gloves, goggles, and a respirator when handling it, and to store it in a cool, dry, and well-ventilated place away from heat, light, and moisture.

Conclusion

Ningbo Inno Pharmchem Co., Ltd. is a reliable and experienced manufacturer, supplier, and factory of 2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole, which is a high-performance ultraviolet absorber that can effectively protect polymers and organic materials from UV-induced degradation, discoloration, cracking, and delamination. Its properties, applications, and safety data have been well studied and documented, and its quality and consistency have been assured by our strict quality control system and advanced analytical techniques. We are committed to providing our customers with the best products and services at a competitive price and in a timely manner. Contact us today to learn more about our products and how we can help you with your UV protection needs.

News you might interested in