Fluorene is an organic compound with the chemical formula C13H10. It consists of two fused benzene rings and is classified as a polycyclic aromatic hydrocarbon (PAH). Fluorene is a colorless solid at room temperature and is primarily used in the production of dyes, plastics, and pharmaceuticals. This compound can be found in coal tar and is also produced during the combustion of organic materials. Fluorene has applications in organic electronics, particularly in the development of light-emitting diodes (LEDs) and solar cells. Its unique structure contributes to its chemical properties and reactivity.