In this paper, 2-benzoyl-3-chlorobenzoic acid was synthesized from
3-chlorophthalic anhydride and refined in ethyl acetate. The content of 2-benzoyl-
3-chlorobenzoic acid was 99.24%. Differential scanning calorimetry (DSC), infrared
spectroscopy (IR), mass spectrometry (MS) and nuclear magnetic resonance (HNMR)
were used to characterize 2-benzoyl-3-chlorobenzoic acid.