2,4-Di-tert-butyl-6-(5-chloro-2-benzotriazolyl)phenol, UV ABSORBER UV-327, 2,4-Di-tert-butyl-6-(5-chloro-2H-benzo[d][1,2,3]triazol-2-yl)phenol, 2,4-di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol, 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)benzotriazole, 2-(3,5-Di-tert-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, 2,4-di-tert-Butyl-6-(5-chlorobenzotriazol-2-yl)phenol, UNISORB 327