Description

2-(2,4-Dihydroxyphenyl)-2H-Benzotriazole is a high-performance benzotriazole derivative, widely recognized for its exceptional ability to absorb ultraviolet (UV) light. This compound matters because it provides critical stabilization and protection to materials susceptible to UV degradation, thereby extending their service life and maintaining their performance. Industries that require durable, light-stable products, such as polymer manufacturing, coatings, and advanced material science, rely on this effective UV absorber.

Application

• Polymer Stabilizer: A primary UV absorber in plastics (e.g., polyolefins, PVC, polycarbonates) and synthetic fibers to prevent photo-oxidation, yellowing, and loss of mechanical properties.
• Coatings & Paints: Incorporated into automotive, industrial, and architectural coatings to protect the underlying substrate and maintain color integrity against sunlight exposure.
• Adhesives & Sealants: Enhances the weatherability and long-term performance of adhesive formulations used in construction and automotive applications.
• Advanced Material Protection: Used in specialty films, packaging materials, and composite materials to shield sensitive components from UV-induced damage.
• Cosmetic & Personal Care Ingredients: Acts as a UV filter in sunscreen formulations and products requiring photostability, though specific regulatory approval for this use must be verified.
• Research & Development: Serves as a key intermediate or reference standard in the synthesis and study of novel UV-absorbing compounds and light-stabilizing systems.

Basic Information

Product Name	2-(2,4-Dihydroxyphenyl)-2H-Benzotriazole
CAS No.	22607-31-4
Molecular Formula	C₁₂H₉N₃O₂
Molecular Weight	227.22 g/mol
Synonyms	2-(2,4-Dihydroxyphenyl)-2H-1,2,3-benzotriazole; UV Absorber 22607-31-4; 2,4-Dihydroxybenzophenone benzotriazole derivative; 2-(2,4-Dihydroxyphenyl)benzotriazole; 2H-Benzotriazole-2-ol, 2-(2,4-dihydroxyphenyl)-; Norbloc 6000 (potential trade name); Dihydroxy Phenyl Benzotriazole; Light Stabilizer 22607-31-4
EINECS	245-123-7

Quality Control

Our 2-(2,4-Dihydroxyphenyl)-2H-Benzotriazole is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and specialty applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your quality requirements.

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 incompatible materials and sources of heat. Due to its light-sensitive nature, containers should be kept in the original packaging or opaque containers until use.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190 - 195 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
UV Absorption (λmax)	Conforms

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