Synonyms: Benzoylchloride, 4,4'-oxydi- (6CI,7CI,8CI); 4,4'-Bis(chlorocarbonyl)diphenyl ether;4,4'-Di(chloroformyl)diphenyl oxide; 4,4'-Oxybisbenzoyl chloride;4,4'-Oxydibenzoyl chloride; 4-(Chlorocarbonyl)phenyl ether; Diphenyl ether4,4'-dicarbonyl dichloride; Diphenyl oxide 4,4'-dicarbonyl chloride;Oxydi-p-phenylenedicarbonyl chloride; p-(Chlorocarbonyl)phenyl oxide