12584-01-9 12584-89-3 30-Oxyethylated t-octyl phenol formaldehyde tetramer Poly(oxy-1,2-ethanediyl), alpha-hydro-omega-hydroxy-, ether with 2,2'-methylenebis(4-(1,1,3,3-tetramethylbutyl)-6-((2-hydroxy-5-(1,1,3,3-tetramethylbutyl)phenyl)methyl)phenol) (4:1)