• methyl (2S)-2-[(5-bromo-1H-indazole-3-carbonyl)amino]-3,3-dimethylbutanoate
Chemical and physical data
Molar mass368.231 g·mol−1
3D model (JSmol)
  • O=C(OC)[C@@H](NC(=O)c1n[NH]c2ccc(Br)cc21)C(C)(C)C
  • InChI=1S/C15H18BrN3O3/c1-15(2,3)12(14(21)22-4)17-13(20)11-9-7-8(16)5-6-10(9)18-19-11/h5-7,12H,1-4H3,(H,17,20)(H,18,19)/t12-/m1/s1

MDMB-5Br-INACA is an indazole-3-carboxamide derivative which has been sold as a designer drug.[1] Surprisingly it appears to produce psychoactive activity despite the lack of a "tail" group at the indazole 1-position, but is of relatively low potency and has been encountered being misrepresented as other illicit drugs such as MDMA.[2]

Use as a precursor

MDMB-5Br-INACA is believed to be used as a precursor in the synthesis of synthetic cannabinoids. It has been sold online as "half finished" synthetic cannabinoids, sometimes as a "chemistry kit" with other compounds required to complete the reaction. This reaction would complete MDMB-5Br-INACA by giving it a "tail" group required for high cannabinoid activity. Other precursors lacking a tail chain have also been marketed such as (ADB-5'Br-BINACA), (ADB-5'Br-BUTINACA), (ADB-5-Br-INACA), (CH-IATA), (ADB-IACA), and (ADB-5’Br-EZO-CA). This may be due to increasing legality changes worldwide on synthetic cannabinoids.[citation needed]


In the United States, MDMB-5Br-INACA is unscheduled at the federal level as of May 22nd, 2023.

North Dakota has placed MDMB-5Br-INACA (along with ADB-5'Br-BINACA, ADB-5'Br-BUTINACA and ADB-5-Br-INACA) into Schedule I on 04/27/2023.[3]

See also


  1. ^ "CFSRE Analysis Report" (PDF). Indianapolis-Marion County Forensic Services Agency. 17 May 2022.
  2. ^ "Drug testers warn of new synthetic cannabinoid being sold as MDMA". New Zealand Herald. 5 August 2022.
  3. ^ "AN ACT to amend and reenact sections 19-03.1-05, 19-03.1-11, and 19-03.1-13 of the North Dakota Century Code, relating to the scheduling of controlled substances; and to declare an emergency" (PDF). Sixty-eighth Legislative Assembly of North Dakota in Regular Session. 3 January 2023.