# Propionyl Chloride
> **Proposed Rule** · Advanced notice of proposed rulemaking. · Published 2023-10-12 · 88 FR 70610
## Document
- **Document number:** 2023-22570
- **Category:** other
- **Type:** Proposed Rule
- **Action:** Advanced notice of proposed rulemaking.
- **Citation:** 88 FR 70610
- **Publication date:** 2023-10-12
## Abstract

The Drug Enforcement Administration finds that propionyl chloride is used in the illicit manufacture of the controlled substance fentanyl, as well as fentanyl analogues, and fentanyl-related substances and is important to the manufacture of these substances because it is often used in synthetic pathways to illicitly manufacture fentanyl, fentanyl analogues, and fentanyl-related substances. Prior to proposing to list propionyl chloride as a list I chemical, DEA is soliciting information on the current uses of propionyl chloride (other than for the synthesis of fentanyl) in order to properly determine the effect such a proposed action would have on legitimate industry.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/10/12/2023-22570/propionyl-chloride)
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