EINECS 223-214-8, 2,2'-Butylidenebis(4,6-xylenol), 1,1-bis(3,5-dimethyl-2-hydroxyphenyl)-butane, 4,6,4',6'-Tetramethyl-2,2'-butyliden-di-phenol, 1,1-bis(2-hydroxy-3,5-dimethylphenyl)butane, 2,4-Xylenol,6,6'-butylidenebis, 2,2'-butane-1,4-diylbis(4,6-dimethylphenol), 1,1-Bis-(2-hydroxy-3,5-dimethyl-phenyl)-butan, 6,6'-Butylidenebis(2,4-xylenol), 4,6,4',6'-tetramethyl-2,2'-butylidene-di-phenol