Alias：5,5'-Oxybis(isobenzofuran-1,3-dione);ODPA;4,4-Oxydiphthalic anhydride;4,4'-Oxydiphthalic dianhydride;5,5'-oxybis-3-isobenzofurandione;4-4'-OXYDIPHTHALIC ACID ANHYDRIDE;4,4'-OXYDIPHTHALIC ANHYDRIDE;BIS-(3-PHTHALYL ANHYDRIDE) ETHER;4,4'-Oxydiphthalic Acid;4,4''-OXYBISDIPHTHALIC ANHYDRIDE;4,4'-Oxydiphthalic Anhydride (purified by sublimation);4,4′-Oxydiphthalic anhydride;3,3',4,4'-diphenylether-tetracarboxylic acid dianhydride;4,4`-Oxydi(phthalic anhydride);5,5;dianhydride of 3,4,3',4'-tetracarboxydiphenyl oxide;oxydiphthalicanhydride