2,2'-[(3,3'-dimethyl-4,4'-biphenylylene)bis(azo)]bis[4-(1,1,3,3-tetramethylbutyl)phenol] 2,2'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bisazo]bis[4-(1,1,3,3-tetramethylbutyl)phenol] Einecs 230-616-7 Phenol, 2,2'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(4-(1,1,3,3-tetramethylbutyl)- Phenol, 2,2'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-(1,1,3,3-tetramethylbutyl)- 6-[[2-methyl-4-[3-methyl-4-[2-[6-oxo-3-(2,4,4-trimethylpentan-2-yl)cyclohexa-2,4-dien-1-ylidene]hydrazinyl]phenyl]phenyl]hydrazinylidene]-4-(2,4,4-trimethylpentan-2-yl)cyclohexa-2,4-dien-1-one