Used as a reference standard in analytical laboratories for the accurate detection and quantification of prometryn in environmental samples, particularly in water, soil, and agricultural products. It ensures calibration of instruments such as gas chromatography (GC) and high-performance liquid chromatography (HPLC), enabling reliable monitoring of residue levels. This is critical for compliance with regulatory limits and assessing environmental impact. The standard solution supports quality control in pesticide testing, helping maintain consistency and accuracy in analytical procedures.