4,4′-(Hexafluoroisopropylidene)diphthalic anhydride1107-00-2100 % similar 4-tert-Butylphthalic anhydride32703-79-062 % similar 4,4′-[2,2,2-Trifluoro-1-(trifluoromethyl)ethylidene]bis[1,2-benzenedicarboxylic acid]3016-76-058 % similar Bpda2420-87-353 % similar 4-Fluorophthalic anhydride319-03-953 % similar 4,4′-Oxydiphthalic anhydride1823-59-250 % similar 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride38103-06-949 % similar Trimellitic anhydride chloride1204-28-049 % similar 4-Chlorophthalic anhydride118-45-649 % similar 4-Methylphthalic anhydride19438-61-049 % similar Benzophenonetetracarboxylic dianhydride2421-28-549 % similar 4-Bromophthalic anhydride86-90-849 % similar 3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride2540-99-046 % similar Naphthalenetetracarboxylic dianhydride81-30-145 % similar Phthalic anhydride85-44-945 % similar Ethylene glycol bis(anhydrotrimellitate)1732-96-345 % similar Trimellitic anhydride552-30-745 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-244 % similar 4-(Phenylethynyl)phthalic anhydride119389-05-843 % similar 4-Nitrophthalic anhydride5466-84-243 % similar