Used primarily as an analytical reagent in the determination of cholinesterase enzyme activity. It acts as a selective inhibitor for certain esterases, making it valuable in biochemical and toxicological studies. Commonly employed in research settings to assess the effects of organophosphorus compounds on enzyme function. Also utilized in the development and calibration of biosensors for pesticide detection due to its ability to mimic the behavior of neurotoxic agents. Its stability and specific reactivity profile make it suitable for controlled laboratory experiments involving enzyme inhibition and reactivation mechanisms.