Synonyms: 4,4'-diaminodiphenyl ether; 4,4'-diaminodiphenyloxide; 4,4'-diaminophenyl ether; 4,4'-diaminophenyl oxide; 4,4-dadpe; 4,4'-Oxydianiline; 4,4'-oxydiphenylamine; 4-Aminophenyl ether; bis (p-Aminophenyl) Ether; DADPE; ODA; oxybis(4-aminobenzene); oxydi-p-phenylenediamine; oxydianiline; 4,4-Diamino diphenyl ether; 4,4'-Diamino Diphenyl Ether;