ULTRAVIOLET LIGHT ABSORBER (UVA) UV 234

Ultraviolet light absorber (uva) UV 234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, imparting excellent light stability to a variety of polymers.
Ultraviolet light absorber (uva) UV 234 ensures durability and prevents yellowing or cracking of surface coatings.
Enhances stability under UV exposure.
Ultraviolet light absorber (uva) UV 234 is used in lenses, films, and sheets to maintain optical clarity.

CAS Number: 70321-86-7
Molecular Formula: C30H29N3O
Molecular Weight: 447.57
EINECS Number: 274-570-6

Synonyms: 70321-86-7, 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)-, UV-234, 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol, Tinuvin 234, BENZOTRIAZOLE BT, EINECS 274-570-6, UNII-9B1ZX3NU45, 2-(benzotriazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol, 9B1ZX3NU45, DTXSID2028985, DTXCID008985, Ultraviolet light absorber (uva) UV 234 (ANTIOXIDANT), EC 274-570-6, 2-(2h-benzotriazol-2-yl)-4,6-bis(1-methyl-l-phenylethyl)phenol, 2-(2-HYDROXY-3,5-DI-.ALPHA.-CUMYLPHENYL)-2H-BENZOTRIAZOLE, Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl), 2-(2-HYDROXY-3,5-DI(1,1-DIMETHYLBENZYL)PHENYL)-2H-BENZOTRIAZOLE, 2-(2'-HYDROXY-3',5'-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)PHENYL)BENZOTRIAZOLE, 2-(2H-BENZOTRIAZOL-2-YL)-4,6-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)PHENOL, 2-(3',5'-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)-2'-HYDROXYPHENYL)BENZOTRIAZOLE, UV Absorber 234, 2-(1,2,3-BENZOTRIAZOL-2-YL)-4,6-BIS(2-PHENYLPROPAN-2-YL)PHENOL, 2-(3',5'-bis(alpha,alpha-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole, 2-[3',5'-bis(alpha,alpha-dimethylbenzyl)-2'-hydroxyphenyl]benzotriazole, MFCD00134705, SCHEMBL29903, Ultraviolet AbsorbentUV-234, CHEMBL1892237, Tox21_202571, AKOS015895747, 1ST3462, NCGC00164197-01, NCGC00260120-01, AS-13201, CAS-70321-86-7, B3717, CS-0135912, NS00004642, 1ST3462-100, D97736, UV-234 Solution in Acetonitrile, 100mug/mL, A836845, W-104560, Q27272294, 2-(2-benzotriazolyl)-4,6-bis(2-phenylpropan-2-yl)phenol, 2-(2-hydroxy-3,5-di-alpha-cumylphenyl)-2h-benzotriazole, 2-[2-Hydroxy-3,5-di(1,1-dimethylbenzyl)phenyl]2H-benzotriazole, 2-(2H-Benzotriazol-2-yl)-4 pound not6-bis(1-methyl-1-phenylethyl)phenol, 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, powder, 2-(2H-BENZOTRIAZOL-2-YL)-4,6-BIS(ALPHA,ALPHA-DIMETHYLBENZYL)PHENOL, 2-[2-hydroxy-3,5-di-(alpha,alpha-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-(2h-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)-pheno,BLS234,2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol UV-234,2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol powder,Eusorb UV-900,2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol,UV Absorber UV-234,Absorber UV-234

Ultraviolet light absorber (uva) UV 234 is a high-performance ultraviolet (UV) absorber widely used in plastics, coatings, and adhesives to enhance their resistance to UV degradation.
Ultraviolet light absorber (uva) UV 234 provides excellent thermal stability and UV absorption, making it particularly eective for applications requiring long-term exposure to sunlight and high temperatures.
Use levels of Ultraviolet light absorber (uva) UV 234 ranges between 0.15 and 0.60%, depending on substrate and performance requirements of the final application.

Ultraviolet light absorber (uva) UV 234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class, imparting excellent light stability to a variety of polymers.
Ultraviolet light absorber (uva) UV 234 is chemically phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl) grade. 
It is a high molecular weight product belonging to hydroxyphenyl benzotriazole class.

Imparts excellent light stability to a variety of polymers.
Ultraviolet light absorber (uva) UV 234s bulky molecular structure reduces migration, especially in thin films or coatings.
Ultraviolet light absorber (uva) UV 234 is extensively used in the plastics industry to protect polycarbonate, polyester, and polyamide products from UV degradation.

Ultraviolet light absorber (uva) UV 234 is applied in polypropylene and polyethylene formulations to improve outdoor durability and prevent yellowing.
Ultraviolet light absorber (uva) UV 234 is found in polyvinyl chloride (PVC) applications, enhancing UV resistance and prolonging material life.
Ultraviolet light absorber (uva) UV 234 is incorporated into automotive coatings, where it protects paint and plastic components from fading and cracking due to UV exposure.

Ultraviolet light absorber (uva) UV 234 is used in industrial coatings for outdoor equipment and structures, ensuring long-lasting color and nish.
Ultraviolet light absorber (uva) UV 234 is included in architectural coatings, where it provides enhanced UV resistance for exterior surfaces.
Ultraviolet light absorber (uva) UV 234 is a highly ecient UV absorber derived from benzotriazole, specically designed for applications requiring superior UV stability and durability.

Phenolic Benzotriazole (Tinuvin 234) provides excellent thermal stability, making it suitable for high-temperature processing and outdoor applications.
The versatility of Ultraviolet light absorber (uva) UV 234 allows its use across diverse industries, including automotive, construction, electronics, and packaging.
Ultraviolet light absorber (uva) UV 234 is non-migratory and compatible with a wide range of polymers, ensuring long-lasting UV protection without aecting material properties.

As a benzotriazole-based stabilizer, Ultraviolet light absorber (uva) UV 234 exhibits high resistance to light and oxidation, preserving the appearance and mechanical integrity of treated materials.
Ultraviolet light absorber (uva) UV 234 is an environmentally friendly UV stabilizer, with low volatility and minimal leaching, making it suitable for eco-conscious formulations.
Ultraviolet light absorber (uva) UV 234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxy phenyl benzotriazole class. 

It is used for molded articles, films, sheets, and fibers. Imparts very good light stability.
Features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates.
Ultraviolet light absorber (uva) UV 234 makes the product particularly suitable for applications characterized by high surface area, such as films and fibers.

Suitable for polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers.
Ultraviolet light absorber (uva) UV 234 is a trade name for a chemical compound primarily used as a UV absorber. 

Ultraviolet light absorber (uva) UV 234 is part of the benzotriazole family of ultraviolet light stabilizers and is commonly employed in plastics, coatings, adhesives, and other materials to protect them from degradation caused by UV radiation. 
Ultraviolet light absorber (uva) UV 234 is particularly effective in enhancing the weatherability and durability of materials exposed to sunlight for prolonged periods.

Melting point: 139-143 °C(lit.)
Boiling point: 589.3±60.0 °C(Predicted)
Density: 1.12±0.1 g/cm3(Predicted)
Flash point: 383 °F(lit.)
storage temp.: Refrigerator
solubility: H2O: <0.04 ppm at 20 °C, insoluble
form: powder
pka: 9?+-.0.10(Predicted)
color: White to Off-White
Odor: fresh fruity raspberry rose
Water Solubility: insoluble, <0.04 ppm at 20 ºC

Ultraviolet light absorber (uva) UV 234 features low volatility, exceptional light absorbing characteristics and good compatibility in various substrates. 
This makes the product particularly suitable for applications characterized by high surface area, such as films and fibers.
Use levels of Ultraviolet light absorber (uva) UV 234 range between 0.15 and 0.60 %, depending on substrate and performance requirements of the final application. 

Ultraviolet light absorber (uva) UV 234 can be used alone or in combination with other functional additives such as antioxidants (hindered phenols, phosphites) and HALS light stabilizers, where often a synergistic performance is observed. 
Extensive performance data of UV Absorber 234 alone or in combination with other additives are available in many of the substrates listed above.
Ultraviolet light absorber (uva) UV 234 protects UV-exposed electronic casings and components from environmental stress.

Ultraviolet light absorber (uva) UV 234 is used in window films, roofing sheets, and façade coatings to maintain aesthetic and functional properties under sun exposure.
Commonly added to synthetic fibers like polyester and nylon to reduce fading and improve durability for outdoor uses.
Ultraviolet light absorber (uva) UV 234 enhances the longevity of protective coatings and polymer components in solar panels, which are constantly exposed to sunlight.

Ultraviolet light absorber (uva) UV 234 absorbs strongly between 300 and 400 nm, which includes UVA (315–400 nm) and UVB (280–315 nm).
Provides maximum absorption at specific wavelengths for polymers like polycarbonate and polyester.
Ultraviolet light absorber (uva) UV 234 can withstand high extrusion or molding temperatures, making it ideal for engineering plastics.

Resistant to leaching, making it suitable for applications requiring water exposure (e.g., marine coatings).
Ultraviolet light absorber (uva) UV 234 absorbs UV light in the range of 300–400 nm, preventing it from penetrating materials. 
This absorption mechanism reduces the photo-degradation processes.

Breakage of chemical bonds in polymer chains caused by UV energy.
Ultraviolet light absorber (uva) UV 234 oxidative reactions that lead to discoloration, embrittlement, or loss of mechanical properties.
Ultraviolet light absorber (uva) UV 234 is highly effective for polymers processed at high temperatures such as polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers. 

UV Absorber 234 exhibits a very low order of oral toxicity and does not present any abnormal problems in its handling or general use. 
Detailed information on handling and any precautions to be observed in the use of the product(s) described in this leaflet can be found in our relevant health and safety information sheet.

Uses:
Ultraviolet light absorber (uva) UV 234 is highly effective for polymers processed at high temperatures such as polycarbonates, polyalkylene terephthalates, polyacetals, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers, as well as for polyvinylchloride, styrene homo- and copolymers. 
Applications include molded articles, films, sheets and fibers.
Widely used in polycarbonate (PC), polyesters (PET, PBT), polyamides (PA), acrylics, and polypropylene.

Common in transparent and semi-transparent plastics to prevent yellowing and loss of clarity.
Ultraviolet light absorber (uva) UV 234 is used in automotive, industrial, and architectural coatings to prevent fading, discoloration, and cracking.
Particularly beneficial for outdoor coatings exposed to high levels of sunlight.

Ultraviolet light absorber (uva) UV 234 enhances long-term stability of adhesives used in UV-exposed environments.
Ultraviolet light absorber (uva) UV 234 protects against yellowing while maintaining high optical clarity.

Ultraviolet light absorber (uva) UV 234 is used in synthetic fibers to ensure UV resistance for outdoor applications.
Protects transparent plastics like those used in eyeglasses, automotive headlamps, and greenhouse panels from yellowing and cracking.
Ultraviolet light absorber (uva) UV 234 is a critical component in the formulation of protective coatings, varnishes, and paints, where its role is to shield surfaces from the deleterious effects of ultraviolet radiation. 

In automotive coatings, Ultraviolet light absorber (uva) UV 234 is used to preserve the gloss, color vibrancy, and structural integrity of vehicle finishes, ensuring that cars retain their aesthetic appeal even under prolonged sun exposure. 
In industrial applications, this UV stabilizer is incorporated into coatings applied to pipelines, machinery, and outdoor equipment to prevent surface deterioration, thereby enhancing their operational lifespan and resistance to environmental stressors. 
For architectural coatings, Ultraviolet light absorber (uva) UV 234 protects paints and varnishes used on building facades, window frames, and outdoor decorative features, ensuring these structures maintain their original appearance while withstanding the harsh effects of UV rays over time.

Ultraviolet light absorber (uva) UV 234 protects clear plastic films and containers used for food storage from UV degradation while maintaining transparency.
Increases the durability of packaging materials for goods stored outdoors.
Ultraviolet light absorber (uva) UV 234 stabilizes adhesives and sealants used in UV-exposed environments, such as outdoor signage, construction materials, and automotive assembly.

Ultraviolet light absorber (uva) UV 234 maintains optical clarity in products like camera lenses, sunglasses, and protective shields.
Protects transparent polymer films and sheets used in display screens and protective coatings.
In the packaging sector, Ultraviolet light absorber (uva) UV 234 is extensively used to stabilize materials employed in both consumer and industrial applications, ensuring durability and functionality under prolonged UV exposure. 

Ultraviolet light absorber (uva) UV 234 is used in clear films and containers to maintain the visual clarity and protective properties of the packaging while preventing the contents from being damaged by ultraviolet radiation. 
Similarly, in industrial packaging, Ultraviolet light absorber (uva) UV 234 enhances the UV resistance of heavy-duty plastic bags, tarpaulins, and wraps, making them suitable for storing materials and equipment outdoors without suffering from degradation due to sunlight exposure. 
Ultraviolet light absorber (uva) UV 234 is widely used in agricultural films, such as greenhouse covers and mulching sheets, where it ensures that these films remain structurally sound and transparent, enabling effective light transmission for agricultural productivity.

Enhances the UV resistance of protective layers in solar panels, ensuring long-term functionality and efficiency.
Ultraviolet light absorber (uva) UV 234 protects casings, connectors, and enclosures for electronic devices exposed to sunlight.
Ensures UV stability in outdoor electrical equipment.

Ultraviolet light absorber (uva) UV 234 protects bumpers, trims, and other plastic components from fading and cracking.
Stabilizes dashboards, instrument panels, and other interior elements against UV exposure through car windows.
Provides UV resistance for polymers used in boats, docks, and marine equipment exposed to harsh sunlight and water conditions.

Ultraviolet light absorber (uva) UV 234 prevents fading and ensures color stability in light-sensitive films.
Stabilizes plastics in outdoor sports gear like helmets, paddles, and playground equipment.
Ultraviolet light absorber (uva) UV 234 is extensively utilized in the plastics industry as an ultraviolet absorber to stabilize and protect various polymers, including thermoplastics and engineering plastics, against the harmful effects of prolonged UV radiation. 

Ultraviolet light absorber (uva) UV 234 is particularly effective in polycarbonate (PC), where it safeguards transparent materials such as headlight lenses, protective screens, and optical devices from yellowing, cracking, and loss of structural integrity caused by prolonged sunlight exposure. 
In polyesters like polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), Ultraviolet light absorber (uva) UV 234 enhances the durability of packaging films, electrical insulation components, and high-performance fibers by preventing photo-degradation and maintaining mechanical strength. 

Ultraviolet light absorber (uva) UV 234 is widely used in polypropylene (PP) to provide outdoor items such as garden furniture, storage containers, ropes, and construction textiles with resistance to fading and brittleness when subjected to ultraviolet light for extended periods.
In the automotive sector, Ultraviolet light absorber (uva) UV 234 is an indispensable additive that provides long-term UV protection to both interior and exterior vehicle components.
Imparts outstanding light stability for polymers processed at high temperatures such as polycarbonate, polyesters, polyacetal, polyamides, polyphenylene sulfide, polyphenylene oxide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers also highly effective for polyvinylchloride, styrene homo- and copolymers.

Safety Profile:
Ultraviolet light absorber (uva) UV 234 stable under environmental conditions but not readily biodegradable.
Direct contact with Ultraviolet light absorber (uva) UV 234 powder or solutions can cause irritation to the skin, eyes, and mucous membranes. 
Prolonged exposure may lead to redness, itching, or discomfort.

Inhalation of dust or fine particles of Ultraviolet light absorber (uva) UV 234 can irritate the respiratory tract, leading to coughing, sneezing, or shortness of breath. 
This is especially a concern in poorly ventilated environments.
Ultraviolet light absorber (uva) UV 234 prolonged or repeated exposure may sensitize some individuals, causing allergic skin reactions.

Although not highly toxic, ingestion of large quantities may cause gastrointestinal irritation, nausea, or other symptoms.
Ultraviolet light absorber (uva) UV 234 is considered hazardous to aquatic environments, particularly to fish, algae, and aquatic invertebrates. 
It may bioaccumulate and persist in the environment, causing long-term ecological effects.

Improper disposal or accidental release into soil or water bodies can result in contamination, potentially impacting local ecosystems.
Generally considered low in toxicity. 
Handle with care to avoid inhalation or ingestion.