Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a protecting group for primary amines due to its stability under various reaction conditions. After the desired reactions are completed, the imide can be hydrolyzed or hydrazinolyzed to release the free amine. Its ethyl group makes it slightly more labile compared to methyl analogs, allowing for selective deprotection in complex molecule synthesis. Also employed in the development of dyes and functional materials where controlled nitrogen release or modification is required.