# Designation of 4-Piperidone as a List I Chemical
> **Rule** · Final rule. · Published 2023-04-12 · 88 FR 21902
## Document
- **Document number:** 2023-07538
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 21902
- **Publication date:** 2023-04-12
## Abstract

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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/04/12/2023-07538/designation-of-4-piperidone-as-a-list-i-chemical)
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