Used primarily in research and industrial settings, this chemical serves as a reference standard in environmental testing to detect and quantify polychlorinated biphenyl (PCB) contamination in soil, water, and air. It aids in studying the environmental impact and persistence of PCBs, which are known for their stability and potential toxicity. Additionally, it is utilized in toxicology studies to understand the health effects of PCB exposure, particularly its role as a dioxin-like compound. Its application is critical in developing remediation strategies and regulatory policies to mitigate PCB pollution.