Used primarily in pharmaceutical research and development as a key intermediate in the synthesis of bioactive compounds. Its structure serves as a building block for inhibitors targeting specific enzymes involved in inflammatory and oncological pathways. Commonly utilized in the preparation of small-molecule drug candidates, particularly in the design of kinase inhibitors. Also employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to mimic purine-like scaffolds, enhancing binding affinity to certain protein targets. Its carboxylic acid functionality allows for easy derivatization, enabling the formation of amides, esters, and other functional groups to optimize pharmacokinetic properties.