2,3-Naphthalenedicarboxylic acid is primarily used in the synthesis of advanced polymers and high-performance materials. Its rigid aromatic structure makes it a valuable precursor in the production of polyimides and polyamides, which are widely utilized in the electronics industry for manufacturing flexible printed circuit boards and insulating films. Additionally, it serves as an intermediate in the creation of dyes and pigments, particularly for applications requiring high thermal stability and colorfastness. In organic synthesis, it is employed to develop complex molecules for pharmaceuticals and agrochemicals due to its ability to introduce specific functional groups. Its derivatives are also explored for their potential in liquid crystal displays (LCDs) and other optoelectronic devices.