UV Absorber 328

Chemical Name: 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol

CAS NO.: 25973-55-1

Molecular Formula:  C22H29N3O

Chemical Structure:

Technical Specification:




 Light yellow powder


 Min 99.0%

 Volatile Matter


 Melting Point


 Light Transmittance




 99% min

Applications: Automotive Coating; Industrial Coating. Mainly suitable for polyolefin, polystyrene, polyvinyl chloride (PVC), polyurethane, polyester and other products. It is a good variety of benzotriazole ultraviolet absorbent. The maximum absorption wavelength is 345nm.

Recommend Dosage: 0.5-3%.

Package and storage: 25kg bag. Avoid direct sunlight,moisture,high temperature. Testing required before use.

Company Info

Henan Wising Chem Co., Ltd