Description

Benzotriazole Series (Uv Absorber) 95-14-7/ CAS NO 4000-40-2 is a high-performance class of ultraviolet light absorbers, specifically benzotriazole derivatives, designed to protect materials from UV degradation. These compounds are critical for extending the service life and maintaining the aesthetic and mechanical properties of polymers, coatings, and other sensitive formulations. Key industries that rely on this series include plastics manufacturing, paints and coatings, personal care, and advanced material science.

Application

• Polymer Stabilization: Essential UV protection for engineering plastics (e.g., polycarbonate, ABS, nylon), polyolefins, and PVC to prevent yellowing, embrittlement, and loss of mechanical strength.
• Coatings and Paints: Used in automotive, industrial, and architectural coatings to protect against gloss loss, chalking, and color fading caused by sunlight exposure.
• Personal Care & Cosmetics: Incorporated into sunscreens and skincare products as a broad-spectrum UV filter to protect skin from UVA and UVB radiation.
• Adhesives and Sealants: Enhances the weatherability and durability of adhesive formulations used in construction and automotive applications.
• Agricultural Films: Added to greenhouse and mulch films to selectively filter UV light, extending film life and optimizing plant growth conditions.
• Photographic and Optical Materials: Protects sensitive dyes and polymers in photographic films, lenses, and optical components from light-induced damage.

Basic Information

Item	Details
Product Name	Benzotriazole Series (Uv Absorber) 95-14-7/ CAS NO 4000-40-2
CAS No.	4000-40-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	2-(2H-Benzotriazol-2-yl)-p-cresol; UV-P; Tinuvin P; BZT; 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole; 2-Hydroxy-4-methylbenzophenone (related class); UV Absorber 326; UV-326; UV Absorber 328
EINECS	Contact for details

Quality Control

Our Benzotriazole UV Absorber series is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 99.0%
Melting Point	128°C - 132°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Transmittance	≥ 95% (425nm) / ≥ 97% (500nm)

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