Description

Benzenepropanoic Acid, 3-(2H-Benzotriazol-2-Yl)-5-(1,1-Dimethylethyl)-4-Hydroxy- is a high-performance benzotriazole derivative widely recognized for its exceptional light-stabilizing properties. This compound is critical for protecting polymers and coatings from UV-induced degradation, thereby extending product lifespan and maintaining aesthetic quality. It is an essential additive for formulators and manufacturers in the plastics, paints, and advanced materials industries seeking reliable photostabilization solutions.

Application

• Polymer Stabilization: Primary application as a highly effective UV absorber and light stabilizer in polyolefins (PP, PE), PVC, polycarbonates, and engineering plastics.
• Coatings & Paints: Protects automotive coatings, industrial paints, wood finishes, and architectural coatings from yellowing, gloss loss, and chalking caused by sunlight exposure.
• Adhesives & Sealants: Enhances the weatherability and long-term performance of adhesive films and sealant formulations exposed to outdoor conditions.
• Agricultural Films: Incorporated into greenhouse films and mulch films to prevent premature embrittlement and extend functional service life.
• Synthetic Fibers & Textiles: Used to improve the lightfastness of fibers, fabrics, and technical textiles, preventing color fading and strength loss.
• Advanced Material Protection: Applied in specialty formulations for protecting sensitive materials in construction, automotive interiors, and electronic components.

Basic Information

Item	Details
Product Name	Benzenepropanoic Acid, 3-(2H-Benzotriazol-2-Yl)-5-(1,1-Dimethylethyl)-4-Hydroxy-
CAS No.	84268-36-0
Molecular Formula	C20H23N3O3
Molecular Weight	353.42 g/mol
Synonyms	2-[3-(2H-Benzotriazol-2-yl)-4-hydroxy-5-tert-butylphenyl]propionic Acid; 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-butylphenol derivative; UV-234 (common trade name); Tinuvin 234; Light Stabilizer 234; 3-(2H-Benzotriazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamic acid; Benzotriazole UV Absorber 234
EINECS	Contact for details

Quality Control

Our production of Benzenepropanoic Acid, 3-(2H-Benzotriazol-2-Yl)-5-(1,1-Dimethylethyl)-4-Hydroxy- adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. The material is manufactured and tested in compliance with relevant industry standards for polymer additives. Comprehensive quality testing includes identity confirmation, assay, and impurity profiling. Certificates of Analysis (COA) documenting all critical specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.5%
Melting Point	137 - 141 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Transmittance (425 nm / 500 nm)	≥ 97.0% / ≥ 98.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.