Used as a reference standard in environmental testing laboratories to calibrate analytical instruments such as gas chromatographs. It helps in the accurate detection and quantification of 1,2,3-trichloropropane in water, soil, and air samples, especially in monitoring contamination from industrial processes or pesticide manufacturing. Commonly employed in regulatory compliance testing to ensure environmental and drinking water safety. Also used in research settings to study degradation pathways and remediation techniques for chlorinated hydrocarbons.