Schedules of Controlled Substances: Placement of Butyryl Fentanyl and U-47700 Into Schedule I

With the issuance of this final order, the Administrator of the Drug Enforcement Administration maintains the placement of the substances butyryl fentanyl (N-(1-phenethylpiperidin-4-yl)-N- phenylbutanamide) and U-47700 (3,4-dichloro-N-[2- (dimethylamino)cyclohexyl]-N-methylbenzamide), including their isomers, esters, ethers, salts, and salts of isomers, esters and ethers, in schedule I of the Controlled Substances Act. This scheduling action discharges the United States obligations under the Single Convention on Narcotic Drugs (1961). This action continues to impose the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who handle (manufacture, distribute, import, export, engage in research or conduct instructional activities with, or possess), or propose to handle, butyryl fentanyl and U-47700.