Used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions to form biaryl compounds. It serves as a key building block in the development of pharmaceuticals, agrochemicals, and advanced materials. Its boronic acid group enables selective carbon-carbon bond formation under mild conditions, making it valuable in medicinal chemistry for constructing complex aromatic frameworks. Also applied in the preparation of fluorescent dyes and organic semiconductors due to the extended π-conjugation from the naphthalene and phenyl groups.