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1,8-Naphthalic anhydride81-84-543 % similar 1,3-Dioxo-2-isoindolineaceticacid6296-53-343 % similar 4-(Phenylethynyl)phthalic anhydride119389-05-843 % similar 3,3',4,4'-Diphenyl sulfone tetracarboxylic dianhydride2540-99-043 % similar 4,5-Dichlorophthalic anhydride942-06-342 % similar Trimellitic anhydride chloride1204-28-041 % similar Ethylene bis[1,3-dihydro-1,3-dioxoisobenzofuran-5-carboxylate]1732-96-341 % similar Bis[(3,4-dicarboxylic anhydride) phenyl]terephthalate21117-79-341 % similar 4-tert-Butylphthalic anhydride32703-79-041 % similar Trimellitic anhydride552-30-741 % similar Naphthalenetetracarboxylic dianhydride81-30-141 % similar 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride1107-00-240 % similar 4-Chloro-1,8-naphthalic anhydride4053-08-140 % similar 4-Nitrophthalic anhydride5466-84-240 % similar 4-Aminonaphthalene-1,8-dicarboxylic anhydride6492-86-040 % similar 4-Bromo-1,8-naphthalic anhydride81-86-740 % similar Tetraphenylphthalic anhydride4741-53-138 % similar 4,5-Difluorophthalic anhydride18959-30-338 % similar 3,6-Dichlorophthalic anhydride4466-59-538 % similar 3-Hydroxy-1,8-naphthalic anhydride23204-36-638 % similar