# Specific Listing for 4F-MDMB-BINACA, a Currently Controlled Schedule I Substance
> **Rule** · Final rule. · Published 2021-06-22 · 86 FR 32633
## Document
- **Document number:** 2021-13040
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 32633
- **Publication date:** 2021-06-22
## Abstract

The Drug Enforcement Administration is establishing a specific listing and Administration Controlled Substances Code Number (drug code) for 4F-MDMB-BINACA (also known as 4F-MDMB-BUTINACA or methyl 2- (1-(4-fluorobutyl)-1H-indazole-3-carboxamido)-3,3-dimethylbutanoate) in schedule I of the Controlled Substances Act (CSA). Although 4F-MDMB- BINACA is not specifically listed in schedule I of the CSA with its own unique drug code, it has been controlled in the United States since April 2017 as a positional isomer of 5F-AMB, a schedule I hallucinogen. Therefore, DEA is simply amending the schedule I hallucinogenic substances list in its regulations to separately include 4F-MDMB- BINACA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/06/22/2021-13040/specific-listing-for-4f-mdmb-binaca-a-currently-controlled-schedule-i-substance)
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