Phthalic anhydride85-44-9100 % similar 2,3-Naphthalenedicarboxylic anhydride716-39-265 % similar 1,8-Naphthalic anhydride81-84-563 % similar Naphthalenetetracarboxylic dianhydride81-30-162 % similar Dimethyl phthalate131-11-361 % similar Bpda2420-87-358 % similar Diphenyl phthalate84-62-858 % similar 3-Chlorophthalic anhydride117-21-556 % similar Furo[3,4-B]pyridine-5,7-dione699-98-956 % similar 4,4′-Oxydiphthalic anhydride1823-59-254 % similar Diisopropyl phthalate605-45-854 % similar Diethyl phthalate84-66-254 % similar 3-Iodophthalic anhydride28418-88-454 % similar 3-Hydroxyphthalic anhydride37418-88-554 % similar 3-Methylphthalic anhydride4792-30-754 % similar 3-Fluorophthalic anhydride652-39-154 % similar Homophthalic anhydride703-59-354 % similar 4-(Phenylethynyl)phthalic anhydride119389-05-853 % similar Propylidenephthalide17369-59-453 % similar Perylenetetracarboxylic dianhydride128-69-852 % similar