Used primarily in research settings as a polycyclic aromatic hydrocarbon (PAH) to study environmental carcinogenesis and mutagenicity. It serves as a model compound for understanding the metabolic activation of chlorinated PAHs and their role in DNA adduct formation. Frequently employed in toxicological studies to assess the impact of halogenated pollutants on cellular systems. Also utilized in analytical chemistry as a reference standard for detecting chlorinated PAHs in environmental samples such as soil, air, and water. Its fluorescence properties make it useful in spectroscopic studies investigating aromatic compound behavior under various conditions.