Used primarily as an intermediate in the synthesis of azo dyes and pigments, especially for textile and printing industries. It contributes to the formation of dyes with strong color fastness and varied shades, particularly yellows, oranges, and reds. Also employed in the production of certain agricultural chemicals and pharmaceuticals where nitroaniline derivatives are required. Its ethoxy and nitro functional groups allow for selective chemical modifications, making it valuable in organic synthesis and research settings.