– Pyrene, a polycyclic aromatic hydrocarbon (PAH), consists of four fused benzene rings. It exhibits a distinct aromatic odor and originates from the incomplete combustion of organic matter. Notably, Pyrene demonstrates strong fluorescence, emitting in the blue region of the spectrum, which enables its use as a probe for studying molecular interactions in solutions and on surfaces. It is also utilized as a model compound for researching polycyclic aromatic hydrocarbons in various environmental and biological systems due to its ubiquitous presence. However, prolonged exposure to Pyrene is associated with potential health risks, including carcinogenic and mutagenic effects.