4,4'-(1,4-Phenylenedioxy)diphthalic anhydride

4,4'-对苯二氧双邻苯二甲酸酐

Also known as: 5,5'-[1,4-Phenylenebis(oxy)]bis(2-benzofuran-1,3-dione), Hydroquinone diphthalic anhydride, 1,4-Bis(3,4-dicarboxyphenoxy)benzene dianhydride, 4,4'-(p-Phenylenedioxy)diphthalic anhydride, HQDA, 1,4-Diphenoxybenzene-3',4',3'',4''-tetracarboxylic acid anhydride

4,4'-(1,4-Phenylenedioxy)diphthalic anhydride (CAS 17828-53-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H10O8 and a molecular weight of 402.310 g/mol. It is also known as 5,5'-[1,4-Phenylenebis(oxy)]bis(2-benzofuran-1,3-dione), Hydroquinone diphthalic anhydride and 1,4-Bis(3,4-dicarboxyphenoxy)benzene dianhydride. Key properties include a melting point of 251-252 ºC, a boiling point of 638.9±50.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 281.1±30.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

17828-53-4

Jingsj CID

J-1101890-0

Molecular Formula

C₂₂H₁₀O₈

Chinese Name

4,4'-对苯二氧双邻苯二甲酸酐

Molecular Weight

402.310 g/mol

Category

Organic Acids

Last updated

8/21/2026