127-54-8 2,2-Bis(4-hydroxy-3-isopropylphenyl)propane 4,4'-Isopropylidenebis(2-isopropylphenol) Bisphenol G NSC21526 Phenol, 4,4'-(1-methylethylidene)bis[2-(1-methylethyl)- Phenol, 4,4'-isopropylidenebis[2-isopropyl-