Chemical name: 2-(3',5'-di-tert-Butyl-2'-hydroxyphenyl)-5-chloro-2H-benzotriazole ;2-(5-chloro-2h-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)-phenol ; 2,4-di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol 

Molecular formula: C20H24N3OCL 

Molecular weight: 357.9 

CAS NO.: 3864-99-1 

Appearance: light yellow powder 

Content: min 99% 

Melting point: 154-158'C 

Loss on drying: max 0.5% 

Ash: max 0.1% 

Light transmittance: 
Wave length nm         Light transmittance % 
             440                             min 97 
              500                            min 98 

Toxicity: low toxicity,rattus norvegicus oral LD50 =5g/Kg weight. 

Applications:This product is suitable in Polyolefine, Polyvinyl chloride, organic glass and others. Max absorption wave length range is 270-400nm.