Quick Search
Tinuvin 234 is a hydroxyphenyl benzotriazole-type ultraviolet (UV) absorber developed for protecting polymers, coatings, and adhesives from UV-induced degradation.
Tinuvin 234 effectively absorbs harmful UV radiation between 290–400 nm, preventing photo-oxidation, discoloration, cracking, and loss of mechanical properties.
Tinuvin 234 is a thermally stable, non-volatile, and non-discoloring stabilizer used in transparent or lightly pigmented systems.
Tinuvin 234 is suitable for high-performance plastics, coatings, films, and automotive applications requiring long-term weather resistance.
CAS Number: 70321-86-7
EC Number: 274-570-6
Molecular Formula: C22H25N3O
Molecular Weight: 347.46 g/mol
Synonyms: UV Absorber 234, UV-234, Benzotriazole UV Stabilizer, Hydroxyphenyl Benzotriazole, Light Stabilizer Tinuvin 234, 2-(2H-Benzotriazol-2-yl)-4,6-di(1-phenylethyl)phenol, Hindered Phenolic UV Absorber, Polymer UV Protector, Benzotriazole Light Stabilizer, Tinuvin 234 BASF, Tinuvin 234, UV-234, 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-phenylethyl)phenol, Benzotriazole UV Absorber 234, UV Absorber Tinuvin 234, BASF Tinuvin 234, 4,6-Bis(1-phenylethyl)-2-(2H-benzotriazol-2-yl)phenol, 2-(2H-Benzotriazol-2-yl)-4,6-di-α-cumylphenol, 4,6-Dicumyl-2-(2H-benzotriazol-2-yl)phenol, Benzotriazole Derivative UV Stabilizer, Tinuvin 234 Light Stabilizer, Tinuvin 234 UV Filter, Tinuvin 234 Polymer Additive, Tinuvin 234 Antioxidant, Tinuvin 234 Plastic Additive, Tinuvin 234 Coating Additive, Tinuvin 234 Paint Additive, Tinuvin 234 UV Screen, Tinuvin 234 UV Protector, Tinuvin 234 Light Screen, Tinuvin 234 UV Blocker, Tinuvin 234 UV Absorbing Agent, Tinuvin 234 UV Resistance Agent, Tinuvin 234 Stabilizer, Tinuvin 234 Light Stabilizer, Tinuvin 234 UV Shield, Tinuvin 234 Weathering Stabilizer, Tinuvin 234 Photostabilizer, Tinuvin 234 UV Absorbing Compound, Tinuvin 234 High Molecular Weight UV Absorber, Tinuvin 234 Aromatic UV Absorber, Tinuvin 234 Benzotriazole Stabilizer, Tinuvin 234 Chemical UV Filter, Tinuvin 234 Light Protection Agent, Tinuvin 234 UV Stabilizing Agent, Tinuvin 234 Additive, Tinuvin 234 Functional Additive, Tinuvin 234 Specialty Additive, Tinuvin 234 Technical Additive, Tinuvin 234 Functional Ingredient, Tinuvin 234 Specialty Ingredient, Tinuvin 234 Polymer Stabilizer, Tinuvin 234 Plastic Stabilizer, Tinuvin 234 Rubber Stabilizer, Tinuvin 234 PVC Stabilizer, Tinuvin 234 Polyolefin Stabilizer, Tinuvin 234 Polycarbonate Stabilizer, Tinuvin 234 Coating Stabilizer
APPLICATIONS
Tinuvin 234 is used as a UV absorber in high-performance engineering plastics.
Tinuvin 234 provides UV stability for polycarbonate, PET, PBT, polyamide, and PMMA.
Tinuvin 234 maintains transparency, color, and physical properties after prolonged exposure.
Tinuvin 234 is applied in automotive coatings and clear coats.
Tinuvin 234 protects paint films from UV degradation, gloss loss, and yellowing.
Tinuvin 234 enhances long-term outdoor durability and color retention.
Tinuvin 234 is incorporated in industrial coatings and protective varnishes.
Tinuvin 234 prevents surface chalking and fading caused by sunlight and weathering.
Tinuvin 234 ensures stable performance in solventborne and UV-curable systems.
Tinuvin 234 is used in transparent thermoplastic applications.
Tinuvin 234 absorbs UV radiation without affecting visible light transmission.
Tinuvin 234 maintains optical clarity in films, sheets, and molded parts.
Tinuvin 234 is employed in automotive and aerospace polymers.
Tinuvin 234 offers thermal stability under high processing temperatures.
Tinuvin 234 enhances gloss and prevents embrittlement of exposed components.
Tinuvin 234 is utilized in powder coating formulations.
Tinuvin 234 prevents discoloration and degradation under UV and thermal stress.
Tinuvin 234 is compatible with epoxy, polyester, and polyurethane powders.
Tinuvin 234 is applied in adhesives and sealants.
Tinuvin 234 improves long-term weatherability and prevents polymer chain breakdown.
Tinuvin 234 enhances transparency and adhesive stability under sunlight exposure.
Tinuvin 234 is used in optical lenses, films, and display coatings.
Tinuvin 234 absorbs UV radiation while maintaining visible light transmittance.
Tinuvin 234 extends the service life of optical and transparent plastics.
Tinuvin 234 is incorporated in furniture and wood coatings.
Tinuvin 234 protects wood finishes from UV-induced fading and micro-cracking.
Tinuvin 234 maintains gloss and color uniformity under sunlight.
Tinuvin 234 is applied in marine and exterior coatings.
Tinuvin 234 provides resistance to salt, humidity, and continuous UV exposure.
Tinuvin 234 extends coating life in high-moisture and outdoor environments.
Tinuvin 234 is used in architectural coatings and building materials.
Tinuvin 234 prevents yellowing and degradation of clear finishes and sealants.
Tinuvin 234 enhances the durability of exterior decorative coatings.
Tinuvin 234 is employed in plastisol and PVC formulations.
Tinuvin 234 stabilizes plasticizers and prevents UV-initiated embrittlement.
Tinuvin 234 enhances transparency and weathering performance.
Tinuvin 234 is utilized in fiber and film stabilization.
Tinuvin 234 protects polyester, polyamide, and polypropylene fibers from photodegradation.
Tinuvin 234 preserves mechanical strength and colorfastness under outdoor conditions.
Tinuvin 234 is used in electrical insulation and wire coatings.
Tinuvin 234 reduces surface oxidation and dielectric deterioration due to UV light.
Tinuvin 234 extends insulation life in sunlight-exposed environments.
Tinuvin 234 is applied in plastics used for solar and greenhouse films.
Tinuvin 234 protects polymer films from UV breakdown while allowing full light transmission.
Tinuvin 234 ensures long-term clarity and mechanical flexibility.
Tinuvin 234 is used in cosmetic and packaging applications.
Tinuvin 234 prevents discoloration of packaging materials under display lighting.
Tinuvin 234 protects light-sensitive formulations from degradation.
Tinuvin 234 is incorporated in clear lacquers, polyurethane coatings, and acrylic finishes.
Tinuvin 234 provides synergistic protection when combined with HALS stabilizers.
Tinuvin 234 enhances both gloss retention and color stability.
Tinuvin 234 is used in inks and printed materials.
Tinuvin 234 prevents fading and pigment oxidation.
Tinuvin 234 ensures long-lasting color brilliance and image stability.
Tinuvin 234 is compatible with antioxidants, HALS, and phosphites.
Tinuvin 234 delivers synergistic stabilization in multi-additive systems.
Tinuvin 234 ensures both short-term process stability and long-term UV protection.
Tinuvin 234 is used as a UV absorber in coatings and plastics.
Tinuvin 234 protects polymers from degradation caused by ultraviolet light.
Tinuvin 234 enhances color stability and prolongs product lifespan.
Tinuvin 234 is applied in automotive coatings.
Tinuvin 234 provides long-term protection against weathering and gloss loss.
Tinuvin 234 prevents fading and yellowing of topcoat finishes.
Tinuvin 234 is used in powder coatings.
Tinuvin 234 improves UV resistance and coating durability.
Tinuvin 234 minimizes chalking and maintains surface appearance.
Tinuvin 234 is incorporated in coil coatings and industrial paints.
Tinuvin 234 ensures excellent light stability in outdoor-exposed metal surfaces.
Tinuvin 234 reduces polymer degradation caused by solar radiation.
Tinuvin 234 is used in plastic films and sheets.
Tinuvin 234 prevents photochemical breakdown and discoloration.
Tinuvin 234 enhances transparency and weatherability of plastic materials.
Tinuvin 234 is applied in polycarbonate formulations.
Tinuvin 234 provides high thermal and light stability.
Tinuvin 234 maintains optical clarity and mechanical strength over time.
Tinuvin 234 is used in polyester and polyamide applications.
Tinuvin 234 protects fibers and films from UV-induced brittleness.
Tinuvin 234 extends service life in outdoor textiles and fibers.
Tinuvin 234 is incorporated in acrylic and polyurethane coatings.
Tinuvin 234 enhances resistance to photooxidation and discoloration.
Tinuvin 234 provides stable gloss and mechanical properties after long-term exposure.
Tinuvin 234 is used in PVC and vinyl formulations.
Tinuvin 234 protects flexible and rigid PVC from photodegradation.
Tinuvin 234 prevents yellowing and loss of physical integrity.
Tinuvin 234 is applied in adhesives and sealants.
Tinuvin 234 provides photostability to transparent or light-colored systems.
Tinuvin 234 prevents embrittlement and discoloration under sunlight.
Tinuvin 234 is used in powder coatings for architectural applications.
Tinuvin 234 ensures excellent color retention and gloss preservation.
Tinuvin 234 contributes to coating longevity in outdoor structures.
Tinuvin 234 is incorporated in thermoplastic elastomers.
Tinuvin 234 prevents UV-induced surface cracking and embrittlement.
Tinuvin 234 helps maintain flexibility and resilience under outdoor conditions.
Tinuvin 234 is used in polyurethane foams and films.
Tinuvin 234 enhances resistance to photooxidative degradation.
Tinuvin 234 maintains flexibility and optical clarity over prolonged exposure.
Tinuvin 234 is applied in electronic device housings and optical lenses.
Tinuvin 234 ensures material stability under continuous light exposure.
Tinuvin 234 minimizes yellowing in transparent and translucent components.
Tinuvin 234 is used in agricultural films and greenhouse covers.
Tinuvin 234 protects plastic films from UV-induced damage and brittleness.
Tinuvin 234 ensures longer service life and better light transmission stability.
DESCRIPTION
Tinuvin 234 is a hydroxyphenyl benzotriazole type UV absorber.
Tinuvin 234 provides excellent light stability for a wide range of polymers and coatings.
Tinuvin 234 is especially effective in applications requiring long-term outdoor exposure resistance.
Tinuvin 234 has the CAS number 70321-86-7.
Tinuvin 234 has the EC number 274-570-6.
Tinuvin 234 has the molecular formula C20H12N4O2.
Tinuvin 234 has a molecular weight of 340.33 g/mol.
Tinuvin 234 appears as a pale yellow crystalline powder.
Tinuvin 234 has a melting point range of 137–141°C.
Tinuvin 234 is sparingly soluble in water but soluble in most organic solvents.
Tinuvin 234 shows high thermal stability and low volatility during processing.
Tinuvin 234 provides efficient UV absorption in the 290–400 nm range.
Tinuvin 234 exhibits excellent compatibility with a broad range of resins and polymers.
Tinuvin 234 is non-discoloring and suitable for clear and light-colored systems.
Tinuvin 234 should be stored in a tightly closed container, away from direct sunlight and heat to preserve its stability.
Tinuvin 234 is a pale yellow crystalline powder with high purity and low volatility.
Tinuvin 234 belongs to the hydroxyphenyl benzotriazole class of UV absorbers.
Tinuvin 234 functions by absorbing ultraviolet light and converting it into harmless thermal energy.
Tinuvin 234 has a broad UV absorption spectrum and exceptional photostability.
It offers strong absorbance in both UV-A and UV-B regions.
Tinuvin 234 provides outstanding protection to both transparent and pigmented polymer systems.
Tinuvin 234 is thermally stable up to 330°C, allowing use in engineering plastics.
Tinuvin 234 does not migrate, volatilize, or crystallize under typical processing conditions.
It is suitable for extrusion, molding, and film casting.
Tinuvin 234 is compatible with most polymers and coating resins, including acrylics, polyesters, polycarbonates, and polyurethanes.
Tinuvin 234 exhibits excellent solubility in organic solvents such as toluene, xylene, and ketones.
It maintains long-term performance without affecting mechanical properties.
Tinuvin 234 is non-discoloring and non-reactive with common additives or pigments.
Tinuvin 234 is widely used in applications requiring transparency and color retention.
It ensures both optical clarity and chemical stability under UV exposure.
Tinuvin 234 complies with international polymer additive regulations, including REACH and RoHS.
Tinuvin 234 meets global standards for industrial, automotive, and packaging use.
Tinuvin 234 is often used as a direct equivalent to Cyasorb UV-234 or Eversorb 234.
PROPERTIES
Appearance: Pale yellow crystalline powder
Odor: Odorless to faintly aromatic
Purity: ≥98%
Melting Point: 137–141°C
Boiling Point: >300°C (decomposes)
Density: 1.18 g/cm³ (20°C)
Flash Point: >180°C
UV Absorption Range: 290–400 nm
λmax (in ethanol): 306 nm
Solubility: Insoluble in water; soluble in acetone, toluene, xylene, and methanol
Volatility: Very low
Thermal Stability: Excellent up to 330°C
Light Stability: Excellent
Compatibility: Compatible with most thermoplastics, elastomers, and coatings
Storage Temperature: 5–30°C, in a tightly sealed container
FIRST AID
Inhalation:
Move to fresh air immediately.
Seek medical attention if irritation or breathing difficulties occur.
Skin Contact:
Wash thoroughly with soap and water.
Seek medical attention if irritation develops.
Eye Contact:
Rinse cautiously with clean water for at least 15 minutes.
Seek immediate medical help if irritation persists.
Ingestion:
Rinse mouth and drink water.
Do not induce vomiting.
Seek medical attention if discomfort occurs.
Note to Physicians:
Treat symptomatically.
No specific antidote is necessary.
HANDLING AND STORAGE
Handling:
Avoid dust generation and direct contact with eyes or skin.
Use appropriate protective equipment such as gloves and goggles.
Ensure adequate ventilation during handling and processing.
Ventilation:
Use local exhaust or general ventilation to minimize airborne particles.
Avoidance:
Avoid exposure to strong oxidizers or incompatible chemicals.
Do not mix with peroxides or reactive compounds.
Spill and Leak Procedures:
Collect spilled material using mechanical means.
Dispose of residues according to local environmental regulations.
Storage:
Store in a cool, dry, and well-ventilated area away from direct sunlight.
Keep containers tightly closed to prevent contamination and moisture absorption.
Protect from high heat and ignition sources.
