Used in organic synthesis as an intermediate for pharmaceuticals and fine chemicals. Its fused ring structure makes it valuable in developing compounds with biological activity. Commonly employed in the preparation of fluorescent dyes and optical brighteners due to its naphthalene core, which enhances light absorption and emission properties. Also investigated for use in materials science, particularly in designing organic semiconductors and photovoltaic materials, where extended π-conjugation improves electron transport. Shows potential in medicinal chemistry for creating analogs with central nervous system activity, including sedative and anticonvulsant effects.