Used primarily in scientific research and environmental testing, this chemical serves as a reference standard for analyzing polychlorinated biphenyls (PCBs) in various samples. It aids in the calibration of instruments like gas chromatographs and mass spectrometers, ensuring accurate detection and quantification of PCB contaminants in environmental and biological matrices. Its application is crucial in monitoring pollution levels, assessing ecological risks, and enforcing regulatory compliance in industries dealing with hazardous substances. Additionally, it supports studies on the persistence, bioaccumulation, and toxicological effects of PCBs in ecosystems.