The solubilities of 3,5-dinitro-2-methylbenzoic acid in 13 solvents such as 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 2-propanol, ethyl acetate, 2-butanol, cyclohexane, toluene, ethanol, acetonitrile, and water were determined through the shake-flask method from 288.15 to 333.15 K at a local pressure of p = 101.2 kPa. The mole fraction solubility values of 3,5-dinitro-2-methylbenzoic acid in the 13 solvents increased with increasing temperature and had the following sequence in the solvents: ethanol > ethyl acetate > toluene > 1-heptanol > 1-propanol > 1-pentanol > 2-butanol > 1-butanol > 2-propanol > 1-hexanol > acetonitrile > water > cyclohexane. The Wilson model, lambda h equation, modified Apelblat equation, and NRTL model were employed to correlate the experimental solubility data. The maximum root-mean-square deviation and relative average deviation values were, respectively, 930.1 X 10(-6) and 4.37 x 10(-2), respectively. The RADs attained by using the modified Apelblat equation were lower than that attained by using the other equations for a certain solvent. The solvent effect upon the mole fraction solubility was studied by using the linear solvation energy relationship based on the solvent descriptors. Also, the mixing properties, the activity coefficient under infinitesimal concentration, and reduced excess enthalpy were acquired through the Wilson model.