Used as a reference standard in analytical laboratories for the identification and quantification of loratadine in pharmaceutical formulations. Commonly employed in quality control and assurance processes to validate the concentration of loratadine in tablets, syrups, and other dosage forms. Also utilized in research settings for method development, calibration of instruments, and ensuring compliance with regulatory standards in drug manufacturing. Suitable for use in techniques such as high-performance liquid chromatography (HPLC) and gas chromatography (GC).