Designation of 4-Piperidone as a List I Chemical

The Drug Enforcement Administration (DEA) is finalizing the control of 4-piperidone, its acetals, its amides, its carbamates, its salts, and salts of its acetals, its amides, and its carbamates, and any combination thereof, whenever the existence of such is possible, as a list I chemical under the Controlled Substances Act. DEA proposed control of 4-piperidone due to its use in clandestine laboratories to illicitly manufacture the schedule II controlled substance fentanyl. This rulemaking finalizes the control of 4-piperidone as a list I chemical.