Clofentezine purity reference material is primarily used in analytical laboratories to ensure the accuracy and reliability of pesticide testing. It serves as a calibration standard in chromatographic techniques such as HPLC and GC-MS for the quantification and identification of clofentezine residues in environmental samples, agricultural products, and food commodities. Its high purity enables precise validation of analytical methods, supporting quality control in regulatory compliance and residue monitoring programs. It is also used in research settings to study the stability, degradation, and metabolite profiling of clofentezine in various matrices.