Used primarily in research to study the effects of polycyclic aromatic hydrocarbons (PAHs) on biological systems, particularly in understanding carcinogenic processes. It serves as a model compound in environmental studies to assess pollution levels and the impact of combustion by-products. Additionally, it is utilized in toxicology to evaluate the mechanisms of DNA damage and mutation caused by exposure to hazardous substances. Its role in developing safety guidelines and regulatory standards for air quality and occupational health is also significant.