2,5-Furandicarboxylic acid
2,5-Furandicarboxylic acid, detected in human urine, is an important renewable biotechnological building block because it serves as an environmentally friendly substitute for terephthalic acid in the production of polyesters. 2,5-Furandicarboxylic acid can be used as the raw material for various chemical intermediates to synthesize polymers, polyurethanes, thermosetting resins, plasticizers, fungicides, macrocyclic ligands and other products[1][2].