Used as a reference material in thermal analysis for calibration of differential scanning calorimeters (DSC) and differential thermal analyzers (DTA). Its well-defined melting point and consistent thermal behavior make it ideal for verifying temperature accuracy and instrument sensitivity. Commonly employed in quality control and research laboratories to ensure reliable thermal measurements in polymers, pharmaceuticals, and materials science. Also utilized in studying phase transitions, crystallization kinetics, and purity analysis of other substances by comparing thermal profiles.