Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of biaryl compounds in pharmaceutical and agrochemical research. Its boronate ester group enables efficient carbon-carbon bond formation under mild conditions, making it valuable in drug discovery for constructing complex heterocyclic systems. Commonly applied in the development of kinase inhibitors and other bioactive molecules containing isoquinoline scaffolds. Also utilized in materials science for creating organic semiconductors and luminescent compounds due to its stable aromatic structure and derivatization potential.