Description

Drometrizole CAS NO 2440-22-4 is a highly effective ultraviolet (UV) light absorber belonging to the benzotriazole class of compounds. It is a critical additive for protecting polymers, coatings, and personal care products from the degrading effects of UV radiation, thereby extending their service life and maintaining aesthetic properties. This product is essential for manufacturers in the plastics, paints, adhesives, and cosmetics industries seeking to enhance the durability and performance of their formulations.

Application

• Polymer Stabilization: A primary UV absorber for polyolefins (PP, PE), PVC, polycarbonates, and polyurethanes to prevent photo-oxidation, yellowing, and loss of mechanical strength.
• Coatings and Paints: Incorporated into automotive, industrial, and architectural coatings to protect the binder and pigments from UV-induced fading, chalking, and degradation.
• Adhesives and Sealants: Used to maintain the integrity and adhesive strength of UV-exposed sealants and adhesive films.
• Personal Care Products: Acts as a UV filter in sunscreens and cosmetic formulations to provide broad-spectrum protection against UVA and UVB rays.
• Packaging Materials: Protects plastic packaging from UV light, helping to preserve the quality and shelf life of sensitive contents.
• Advanced Materials: Employed in the stabilization of engineering plastics and synthetic fibers used in outdoor applications.

Basic Information

Product Name	Drometrizole
CAS No.	2440-22-4
Molecular Formula	C₁₃H₁₃N₃O
Molecular Weight	227.26 g/mol
Synonyms	2-(2H-Benzotriazol-2-yl)-4-methylphenol; Tinuvin P; UV-P; Bumetrizole; Drometrizolum; 2-(2'-Hydroxy-5'-methylphenyl)benzotriazole; Phenol, 2-(2H-benzotriazol-2-yl)-4-methyl-
EINECS	219-470-5

Quality Control

Our Drometrizole is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance as a UV absorber. A comprehensive Certificate of Analysis (COA), detailing purity, identity, and key physical parameters, is provided with each shipment to guarantee supply reliability and product consistency for your critical formulations.

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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.5%
Melting Point	128°C - 132°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
UV Absorption	Conforms

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