2,2′-Iminodibenzoic acid is primarily used in organic synthesis as a building block for creating complex molecules. Its structure, featuring both carboxylic acid and imino groups, makes it a versatile intermediate in the preparation of pharmaceuticals, particularly in the development of compounds with potential therapeutic properties. It is also employed in the synthesis of ligands for metal coordination chemistry, aiding in the creation of catalysts used in various industrial processes. Additionally, this compound finds application in the production of dyes and pigments, where its aromatic and functional groups contribute to the desired color and stability of the final product.