N-Desalkylflurazepam (also known as norflurazepam) is a benzodiazepine and an active metabolite of several other benzodiazepine drugs including flurazepam, flutoprazepam,fludiazepam, flutazolam,. It is long-acting, prone to accumulation, and binds unselectively to the various benzodiazepine receptor subtypes.]It has been sold as a designer drug from 2016 onward. This product is intended for laboratory research purposes only and are not to be used for any other purposes.