UV 328

Chemical name:2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole
Molecular formula:C₂₂H₂₉N₃O

CAS NO.  25973-55-1
Structural formula: 

Properties: It is a pale yellowish powder melting point 81, soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethyl alcohol and methyl alcohol insoluble in water.

Specifications:

Use:  UV 328 is a strong ultraviolet light absorber in the 290-400nm. It provides effective light stabilization effect and prevents goods from becoming yellow and degradation. Mainly used in PVC, unsaturated polyester, acrylics, ABS, thermoplastic urethanes, moisture cured polyurethanes, two components epoxies and urethanes, oil alkyds and thermosetting acrylic enamels.

Packing: in 15 kg net poly-ply paper bags or 20kg, 25kg net cartons or fiberboard drum.