# Fentanyl-related substances, their isomers, esters, ethers, salts and salts of isomers, esters and ethers — Federal controlled substance schedule (I-V) by drug, with DEA code number

For Fentanyl-related substances, their isomers, esters, ethers, salts and salts of isomers, esters and ethers, schedule is Schedule I; listed under is Temporary listing of substances subject to emergency scheduling; dea code number is 9850; cfr citation is 21 CFR 1308.11(h)(30), recorded from its source on 2026-09-01.

- **Substance:** Fentanyl-related substances, their isomers, esters, ethers, salts and salts of isomers, esters and ethers _(verified: appears in the quote below)_
- **Schedule:** Schedule I _(verified: appears in its own passage below)_
- **Listed under:** Temporary listing of substances subject to emergency scheduling _(verified: appears in its own passage below)_
- **DEA code number:** 9850 _(verified: appears in the quote below)_
- **CFR citation:** 21 CFR 1308.11(h)(30) _(our reading, not quoted from the source)_

## What the source says

> (30) Fentanyl-related substances, their isomers, esters, ethers, salts and salts of isomers, esters and ethers | 9850 |

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Schedule

> § 1308.11 Schedule I.

### Listed under

> (h) Temporary listing of substances subject to emergency scheduling.

## Source

- https://www.ecfr.gov/current/title-21/chapter-II/part-1308

Last verified: 2026-09-01. Review by: 2026-12-30.
Part of [Federal controlled substance schedule (I-V) by drug, with DEA code number](https://referencesource.org/dea-controlled-substance-schedule-by-drug/).