Thenylfentanyl is an analogue of fentanyl where the phenethylamine side-chain has been replaced by a thiophenylmethyl group. It was temporarily scheduled by the Drug Enforcement Administration in 1985,[1] due to fears it would be used as a designer drug. But in 2010 the DEA acknowledged it was essentially inactive.[2] Subsequently, the substance was since deregulated.
^"Schedules of Controlled Substances: Temporary Placement of Acetyl-alpha-methylfentanyl, Alpha-methylthiofentanyl, Benzylfentanyl, Beta-hydroxyfentanyl, Beta-hydroxy-3-methylfentanyl, 3-Methylthiofentanyl, Thenylfentanyl, and Thiofentanyl into Schedule I of the Controlled Substances Act" (PDF). Isomer Design. Drug Enforcement Administration. October 29, 1985. Archived (PDF) from the original on March 3, 2022. Retrieved January 16, 2023.
^"Removal of Temporary Listing of Benzylfentanyl and Thenylfentanyl as Controlled Substances". Federal Register. Drug Enforcement Administration. June 29, 2010.
Thenylfentanyl is an analogue of fentanyl where the phenethylamine side-chain has been replaced by a thiophenylmethyl group. It was temporarily scheduled...
Federal Regulations: Removal of Temporary Listing of Benzylfentanyl and Thenylfentanyl as Controlled Substances Utilization of a radioreceptor assay for the...