1-Fluoronaphthalene is primarily utilized in organic synthesis as a building block for more complex chemical compounds. Its fluorine atom makes it a valuable intermediate in the development of pharmaceuticals, agrochemicals, and materials science. The compound is often employed in nucleophilic aromatic substitution reactions, where the fluorine atom can be replaced by other functional groups, enabling the creation of diverse chemical structures. Additionally, it is used in research and development for studying reaction mechanisms and fluorine chemistry. Its stability and reactivity also make it suitable for use in the synthesis of liquid crystals and polymers, where precise molecular design is crucial.