Bpda2420-87-3100 % similar 4,4′-Oxydiphthalic anhydride1823-59-263 % similar 2,3′,3,4′-Biphenyltetracarboxylic dianhydride36978-41-363 % similar 4-Chlorophthalic anhydride118-45-661 % similar 4-Methylphthalic anhydride19438-61-061 % similar Benzophenonetetracarboxylic dianhydride2421-28-561 % similar 4-Fluorophthalic anhydride319-03-961 % similar 4-Bromophthalic anhydride86-90-861 % similar Naphthalenetetracarboxylic dianhydride81-30-158 % similar Phthalic anhydride85-44-958 % similar 3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride2540-99-057 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-256 % similar Trimellitic anhydride chloride1204-28-055 % similar Ethylene glycol bis(anhydrotrimellitate)1732-96-355 % similar 4-tert-Butylphthalic anhydride32703-79-055 % similar Trimellitic anhydride552-30-755 % similar 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride1107-00-253 % similar 4,5-Dichlorophthalic anhydride942-06-352 % similar 4-(Phenylethynyl)phthalic anhydride119389-05-852 % similar 4-Nitrophthalic anhydride5466-84-252 % similar