Used as a chiral building block in organic synthesis, particularly in the development of pharmaceuticals and fine chemicals. Its rigid bicyclic structure and two carboxylic acid groups make it valuable for designing ligands in asymmetric catalysis. It is also employed in the preparation of specialty polymers and functional materials where stereochemical control is important. Due to its phenyl-substituted norbornane framework, it serves in structure-activity relationship studies in medicinal chemistry, helping to probe the effects of molecular rigidity and shape on biological activity.