UV absorber

2-(2′-Hydroxy-5′-methyl-phenyl)benzotriazole

2-（2′-Hydroxy-5′-tert-octylphenyl）benzotriazole

2′-(2′-Hydroxy-3′-tert-buty-5′-methyl-phenyl)-5-chlorobenzotriazole

2-[2′-hydroxy-3′,5′-bis(a,a-dimethyl benzyl)-phenyl] benzotriazole