Used in the synthesis of dyes and pigments, particularly for producing bright and lightfast colorants in textiles and inks. Acts as an intermediate in the production of fluorescent whiteners for paper and detergents. Employed in organic research for constructing complex aromatic systems due to its reactive nitro and carboxylic functional groups. Also utilized in the development of certain pharmaceuticals and agrochemicals where naphthalene derivatives are required. Its structure supports conjugation, making it valuable in the design of optoelectronic materials and sensors.