Used primarily in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions. It enables the formation of carbon-carbon bonds, particularly in the construction of biaryl or aryl-heteroaryl frameworks found in pharmaceuticals and functional materials. The indole moiety makes it valuable for synthesizing derivatives relevant to medicinal chemistry, including potential drug candidates targeting neurological disorders, inflammation, and cancer. Its boronate group offers good stability and reactivity under palladium catalysis, making it suitable for late-stage functionalization in complex molecule assembly. Also employed in materials science for developing organic semiconductors and fluorescent compounds due to the inherent electronic properties of the indole system.