1-Anthracenecarboxylic Acid is primarily used in organic synthesis and research applications. It serves as a key intermediate in the production of dyes and pigments, particularly those with fluorescent properties. Its structure makes it valuable in the development of organic electronic materials, such as light-emitting diodes (LEDs) and photovoltaic cells. Additionally, it is utilized in the study of photochemical reactions due to its ability to absorb and emit light effectively. In analytical chemistry, it is employed as a fluorescent probe or marker for detecting and studying molecular interactions. Its applications also extend to the field of biochemistry, where it is used to investigate enzyme mechanisms and protein binding studies.