1,3,2-Dioxaphosphorinane, 2,2'-(butylidenebis((2-(1,1-dimethylethyl)-5-methyl-4,1-phenylene)oxy))bis(5,5-dimethyl- 2,2'-(Butylidenebis((2-(tert-butyl)-5-methyl-p-phenylene)oxy))bis(5,5-dimethyl-1,3,2-dioxaphosphorinane) 72018-03-2 EINECS 276-294-1