Used as a key building block in polymer synthesis, particularly in the production of high-performance polyesters and polyamides. Its rigid aromatic core combined with flexible propionic acid chains enhances thermal stability and mechanical strength of the resulting materials. Commonly applied in specialty coatings, engineering plastics, and electronic materials where durability and heat resistance are required. Also investigated as a linker in metal-organic frameworks (MOFs) due to its ability to coordinate with metal ions and form structured porous networks. Additionally, finds use in pharmaceutical research as a spacer molecule in prodrugs and bioactive compound design.