Used primarily in research and analytical laboratories as a reference standard for the identification and quantification of hexachlorocyclohexane (HCH) isomers in environmental samples. It aids in monitoring and assessing contamination levels in soil, water, and air due to its persistence as a pollutant. Additionally, it supports studies on the degradation and behavior of HCH isomers in ecosystems, contributing to environmental remediation efforts. In some cases, it may also be utilized in toxicity studies to understand the health impacts of HCH exposure.