2,3-Naphthalenedicarboxylic anhydride716-39-2100 % similar Phthalic anhydride85-44-965 % similar 1,8-Naphthalic anhydride81-84-559 % similar Bpda2420-87-356 % similar Naphthalenetetracarboxylic dianhydride81-30-152 % similar 4,5-Dichlorophthalic anhydride942-06-352 % similar 4,4′-Oxydiphthalic anhydride1823-59-252 % similar 4-(Phenylethynyl)phthalic anhydride119389-05-852 % similar 4-Chlorophthalic anhydride118-45-650 % similar 4-Methylphthalic anhydride19438-61-050 % similar Benzophenonetetracarboxylic dianhydride2421-28-550 % similar 4-Fluorophthalic anhydride319-03-950 % similar 1,4-Anthraquinone635-12-150 % similar 4-Bromophthalic anhydride86-90-850 % similar Methyl 3-hydroxy-2-naphthoate883-99-850 % similar 3-Chlorophthalic anhydride117-21-548 % similar 4-Nitrophthalic anhydride5466-84-247 % similar 3,3′,4,4′-Diphenyl sulfone tetracarboxylic dianhydride2540-99-047 % similar 5-Nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione3027-38-146 % similar Trimellitic anhydride chloride1204-28-045 % similar