Description

2-(5-Chloro-2H-Benzotriazol-2-Yl)-6-(1,1-Dimethylethyl)-4-Ethenylphenol is a high-performance benzotriazole derivative widely recognized for its exceptional light-stabilizing properties. This compound is engineered to protect polymers and coatings from UV-induced degradation, thereby extending product lifespan and maintaining aesthetic integrity. It is a critical additive for formulators and manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable photostabilization solutions.

Application

• Polymer Stabilizer: Primary application as a highly effective UV absorber and light stabilizer in engineering plastics such as polycarbonate, polyesters (PET, PBT), and polyamides (nylons).
• Coatings & Paints: Used in automotive, industrial, and architectural coatings to prevent color fading, gloss loss, and chalking caused by sunlight exposure.
• Adhesives & Sealants: Incorporated to enhance the weatherability and long-term performance of high-value adhesive and sealant formulations.
• Advanced Material Protection: Applied in specialty films, fibers, and composite materials where UV resistance is critical for functional durability.
• Synergistic Formulations: Often used in combination with Hindered Amine Light Stabilizers (HALS) to provide superior, long-term stabilization for demanding outdoor applications.

Basic Information

Product Name	2-(5-Chloro-2H-Benzotriazol-2-Yl)-6-(1,1-Dimethylethyl)-4-Ethenylphenol
CAS No.	124883-10-9
Molecular Formula	C18H18ClN3O
Molecular Weight	327.81 g/mol
Synonyms	2-(5-Chloro-2H-benzotriazol-2-yl)-6-tert-butyl-4-vinylphenol; 2-(2H-Benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-ethenylphenol, 5-chloro derivative; UV Absorber 124883-10-9; 5-Chloro-2-(2-hydroxy-5-vinyl-3-tert-butylphenyl)benzotriazole; Light Stabilizer 124883; Benzotriazole UV Stabilizer; Phenol, 2-(5-chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-ethenyl-
EINECS	Contact for details

Quality Control

Our production of 2-(5-Chloro-2H-Benzotriazol-2-Yl)-6-(1,1-Dimethylethyl)-4-Ethenylphenol adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing key parameters such as assay, melting point, and impurity profiles 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). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider using an inert gas blanket (e.g., nitrogen or argon).

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	138°C - 142°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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