Fluoranthene-3-boronic acid is primarily utilized in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This chemical serves as a key building block for creating complex organic molecules, often used in the development of pharmaceuticals, agrochemicals, and advanced materials. Its boronic acid group enables efficient coupling with aryl halides, facilitating the formation of carbon-carbon bonds. Additionally, it finds applications in the synthesis of fluorescent dyes and conjugated polymers, which are essential in optoelectronic devices such as organic light-emitting diodes (OLEDs) and sensors. Its unique structure also makes it valuable in research focused on polycyclic aromatic hydrocarbons (PAHs) and their derivatives.