The following information was compiled in June 2024 and is subject to change as new research is conducted and as new information becomes available:

Description: MMB-4en-PINACA is a novel synthetic cannabinoid with structural similarity to MDMB-4en-PINACA, MMB-4en-PICA, and other synthetic cannabinoids. MMB-4en-PINACA was first detected in February 2024 by our laboratory and was confirmed in comparison to standard reference material.

Sample Source: Cook County Sheriff’s Office (Chicago, IL)

Sample Appearance: Paper samples

Pharmacology: In vitro pharmacological data available for MMB-4en-PINACA show that this synthetic cannabinoid is active but less potent than its tert-leucine counterpart MDMB-4en-PINACA.1

Toxicology: MMB-4en-PINACA has not yet been identified in toxicology cases to date at the CFSRE.

Drug Materials: MMB-4en-PINACA has been detected in two drug materials to date at the CFSRE.

Demographics / Geographics: Drug materials originated from Chicago, Illinois. MMB-4en-PINACA was found in the absence of other drugs in one case and alongside MDMB-4en-PINACA in one case.

Legal Status: MMB-4en-PINACA is not currently scheduled in the United States.

Class: Cannabinoid
 Appearance: Paper
 Formula: C19H25N3O3
 MW: 343.42  [M+]: 343  [M+H]+: 344.1969
 IUPAC: Methyl 3-methyl-2-[(1-pent-4-enylindazole-3-carbonyl)amino]butanoate
 Report Date: June 20, 2024