Used in organic synthesis as a building block for pharmaceuticals and agrochemicals, particularly in Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds. Its fused aromatic structure enhances stability and electronic properties, making it valuable in the development of organic electronic materials and fluorescent probes. Also explored in medicinal chemistry for designing kinase inhibitors and other bioactive molecules due to its rigid, planar framework that can intercalate into biological targets.