UV-328, UV ABSORBER UV-328, Ultraviolet absorbent UV-328, ThasorbUv328, Cyasorb UV-2337, Phenol; UV-absorber of the benzotriazole type, 2-(2h-benzotriazol-2-yl)-4,6-di-tert-pentylphenol, 2-(2'-hydroxy-3',5'-di-t-amylphenyl)benzotriazole, 2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole, JRSorb 328, 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol, 2-(2'-hydroxy-3',5'-di-t-amylphenyl)benzotriazole, Tinuvin 328, Tinuvin® PA 328 FF, UNISORB 328