Synonyms: 2,2-BIS(4-HYDROXYPHENYL)-4-METHYLPENTANE;4,4'-(1,3-DIMETHYLBUTYLIDENE)DIPHENOL;2,2-BIS(4-HYDROXYPHENYL)-4-METHYL-N-PENTANE;4,4-(1,3-Dimethylbutylidene)bisphenol;4,4-Diisobutylethylidenediphenol;4,4-isobutylethylidenediphenol;Ai3-50870;Phenol, 4,4'-(1,3-dimethylbutylidene)bis-