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4-tert-Butylphthalic anhydride32703-79-0100 % similar 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride1107-00-262 % similar 2,2-Bis(4-(3,4-dicarboxyphenoxy)phenyl)propane dianhydride38103-06-958 % similar 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone2420-87-355 % similar 4-Methylphthalic anhydride19438-61-055 % similar 2-tert-Butylanthraquinone84-47-954 % similar 1,6,7,12-Tetra-tert-butylphenoxyperylene-3,4,9,10-tetracarboxylic dianhydride156028-30-754 % similar 4,4'-Oxydiphthalic anhydride1823-59-252 % similar 4-Chlorophthalic anhydride118-45-650 % similar 4,4'-(1,4-Phenylenedioxy)bisphthalic Anhydride17828-53-450 % similar 4,4'-Carbonyldiphthalic anhydride2421-28-550 % similar 4-Hydroxyphthalic anhydride27550-59-050 % similar 4-Fluorophthalic anhydride319-03-950 % similar 4-Bromophthalic anhydride86-90-850 % similar 3,3',4,4'-Diphenyl sulfone tetracarboxylic dianhydride2540-99-047 % similar Methyl 4-tert-butylbenzoate26537-19-947 % similar 4,5-Difluorophthalic anhydride18959-30-347 % similar Naphthalenetetracarboxylic dianhydride81-30-147 % similar Phthalic anhydride85-44-947 % similar Trimellitic anhydride chloride1204-28-046 % similar