Naphthalene-2,6-dicarbaldehyde is primarily used as a key intermediate in the synthesis of organic compounds, particularly in the production of dyes, pigments, and fluorescent materials. Its structure allows it to act as a building block for creating complex molecules with specific optical properties, making it valuable in the development of sensors and imaging agents. Additionally, it is employed in the preparation of polymers and coordination compounds, where its aldehyde groups facilitate cross-linking and metal ion binding. This chemical also finds application in research for designing molecular probes and studying supramolecular chemistry due to its ability to form stable and functionalized structures.