Synonyms: 2-(2-Hydroxy-3,5-di-a-cumylphenyl)-2H-benzotriazole;2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol;2-(2H-Benzotriazol-2-yl)-4,6-bis(a,a-dimethylbenzyl)phenol;2-[2-Hydroxy-3,5-bis(a,a-dimethylbenzyl)phenyl]benzotriazole;2-[2-Hydroxy-3,5-di(1,1-dimethylbenzyl)phenyl]-2H-benzotriazole;2-[2'-Hydroxy-3',5'-bis(a,a-dimethylbenzyl)phenyl]benzotriazole;2-[3',5'-Bis(1-methyl-1-phenylethyl)-2'-hydroxyphenyl]benzotriazole;Benzotriazole BT;Eversorb 76;Lowilite 234;T 234;Tinuvin 234D;Tinuvin 900;UV 234;UV 234 (antioxidant);Uvinul 3034;