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2,3′,3,4′-Biphenyltetracarboxylic dianhydride36978-41-3100 % similar 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone2420-87-363 % similar 3,4'-Oxydiphthalic anhydride50662-95-856 % similar 3-Chlorophthalic anhydride117-21-556 % similar 3-Iodophthalic anhydride28418-88-450 % similar 3-Hydroxyphthalic anhydride37418-88-550 % similar 3-Methylphthalic anhydride4792-30-750 % similar 3-Fluorophthalic anhydride652-39-150 % similar Phthalic anhydride85-44-950 % similar 4-Chlorophthalic anhydride118-45-649 % similar 4,4'-Oxydiphthalic anhydride1823-59-246 % similar 1,2-Naphthalenedicarboxylic anhydride5343-99-745 % similar 4,4'-(1,4-Phenylenedioxy)bisphthalic Anhydride17828-53-445 % similar 4-Methylphthalic anhydride19438-61-045 % similar 4,4'-Carbonyldiphthalic anhydride2421-28-545 % similar 4-Hydroxyphthalic anhydride27550-59-045 % similar 4-Fluorophthalic anhydride319-03-945 % similar 4-Bromophthalic anhydride86-90-845 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-244 % similar 3-Nitrophthalic anhydride641-70-344 % similar