Used primarily in scientific research to study the metabolic activation and DNA binding properties of polycyclic aromatic hydrocarbons (PAHs). It serves as a model compound for understanding carcinogenesis mechanisms, especially how methyl-substituted PAHs interact with cellular enzymes and form DNA adducts. Commonly employed in mutagenicity assays and tumorigenicity studies to assess the impact of structural modifications on biological activity. Also utilized in environmental toxicology to evaluate the persistence and biological effects of methylated PAHs in contaminated systems.