Used as a reference standard in pharmaceutical analysis for the detection and quantification of zolmitriptan metabolites in biological samples. Plays a role in metabolism studies to understand the pharmacokinetics and biotransformation pathways of zolmitriptan in the human body. Employed in the development and validation of analytical methods such as HPLC and mass spectrometry for drug monitoring and clinical research. Also utilized in quality control during the manufacturing of zolmitriptan-based medications to ensure purity and safety by identifying oxidative impurities.