Photoresist Chemicals Phenol, 4,4-(1-methylethylidene)bis(2,6-dibromo-, polymer with (chloromethyl)oxirane and 4,4-(1-methylethylidene)bis(phenol) Cas:67989-95-1 Molecular Formula:Phenol, 4,4-(1-methylethylidene)bis(2,6-dibromo-, polymer with (chloromethyl)oxirane and 4,4-(1-methylethylidene)bis(phenol)