2-(4-Hydroxybenzoyl)benzoic acid is a white crystalline powder. It is sparingly soluble in water but soluble in organic solvents like ethanol and acetone. The compound has a melting point range of approximately 245-250 ℃. The synthesis of 2-(4-Hydroxybenzoyl)benzoic acid involves the reaction of 4-hydroxybenzoic acid (also known as p-hydroxybenzoic acid) with benzoyl chloride or benzoyl anhydride. The reaction occurs through an acylation process where the benzoyl group is added to the benzene ring of the 4-hydroxybenzoic acid. This compound has potential applications in various fields, including pharmaceuticals and materials science. It can serve as a building block for synthesising other organic compounds or as a starting material for preparing pharmaceutical intermediates. Additionally, it may exhibit certain properties that make it useful in developing materials or coatings.