Used primarily in pharmaceutical research as a building block for synthesizing more complex molecules. It plays a role in the development of compounds with potential therapeutic applications, particularly in the study of enzyme inhibitors and receptor modulators. Its structure allows for modifications that can enhance drug efficacy and specificity. Additionally, it is utilized in organic chemistry as an intermediate in the preparation of various heterocyclic compounds, which are valuable in medicinal chemistry and material science. Its nitro and carboxylic acid groups make it a versatile reagent for further chemical transformations.