Used primarily as a polychlorinated biphenyl (PCB) congener in environmental studies to assess contamination and toxicity. Serves as a reference standard in analytical testing to identify PCB degradation products in soil, water, and biological samples. Due to its persistence and potential to bioaccumulate, it is studied for its impact on ecosystems and human health, particularly in understanding the behavior of chlorinated pollutants in the food chain. Also utilized in research on microbial degradation pathways for halogenated compounds in remediation technologies.