Solubilities of terephthalaldehydic acid in water, acetic acid, chloroform, N, N-dimethylformamide, and N-methyl-2-pyrrolidone were determined by a static analytical method at temperatures ranging from 293.15 K to 371.15 K at atmospheric pressure. The Buchowski equation was used to correlate the solubility data with standard deviations in the range 0.006-3.438 g of terephthalaldehydic acid/100 g of solvent.