Used primarily in research settings as a reference standard or probe compound for studying the metabolism and degradation products of rasagiline, a drug used in the treatment of Parkinson’s disease. It helps in identifying potential impurities and by-products formed during rasagiline storage or biological processing. Due to its nitroso group, it may also be involved in studies assessing genotoxic impurities, supporting safety evaluations in pharmaceutical development. Not intended for therapeutic use.