Used primarily in environmental analysis, particularly as a reference standard in the detection and quantification of polycyclic aromatic hydrocarbons (PAHs) in air, water, soil, and biological samples. Its presence is often monitored due to its persistence and potential toxicity. It serves as a marker compound in studies assessing pollution from combustion processes such as vehicle emissions, industrial activities, and wildfires. Also employed in laboratory research to evaluate the behavior, degradation, and bioaccumulation of high-molecular-weight PAHs in ecosystems. Due to its fluorescent properties, it can be used in spectroscopic studies and sensor development for pollutant detection.