6-Amino-2-naphthoic acid is primarily used in the synthesis of dyes and pigments, particularly for coloring textiles, plastics, and papers. Its structure allows it to form stable, vibrant colors, making it valuable in industries requiring high-quality dyes. Additionally, it serves as an intermediate in the production of pharmaceuticals, where it is incorporated into compounds with potential therapeutic properties. In research, it is utilized in the development of organic materials, such as liquid crystals and polymers, due to its aromatic and functional groups that enhance material properties. Its versatility also extends to analytical chemistry, where it is used as a reagent in various chemical assays and studies.