Alias：HQDA;HYDROQUINONE DIPHTHALIC ANHYDRIDE;1,4-Bis(3,4-dicarboxyphenoxy)benzene dianhydride;1,4-Diphenoxybenzene-3',4',3'',4''-tetracarboxylic acid anhydride;4,4'-(4,1-Phenylenedioxy)bis[phthalic anhydride];4,4'-(p-Phenylenedioxy)bis[phthalic anhydride];1,4-Bis(3,4-dicarboxyphenoxy)benzene dianhydride(HQDPA);HQDPA;1,3-Isobenzofurandione,5,5'-[1,4-phenylenebis(oxy)]bis-;4,4'-(p-phenylenedioxy)diphthalic anhydride;5,5'-(1,4-Phenylenebis(oxy))bis(isobenzofuran-1,3-dione)