Used as a reference standard in analytical laboratories for calibration and quality control in gas chromatography (GC) and high-performance liquid chromatography (HPLC). Ensures accurate quantification and identification of ethyl acetate in various samples, including environmental, pharmaceutical, and food matrices. Commonly applied in testing for residual solvents in drug products and in monitoring air quality for volatile organic compounds. Its consistent purity and concentration make it reliable for generating calibration curves and validating analytical methods.