Used primarily as a reagent in organic synthesis, it plays a key role in the acylation reactions, where it introduces the p-nitrobenzoyl group into various organic compounds. This chemical is particularly valuable in the production of dyes, pharmaceuticals, and agrochemicals, where it helps in modifying the chemical structure to achieve desired properties. It is also employed in the synthesis of peptides and other complex molecules, where it acts as a protecting group for amines. Additionally, its reactivity with alcohols and amines makes it useful in the preparation of esters and amides, which are foundational in many industrial chemical processes.