5-Bromo-DMT (5-bromo-N,N-dimethyltryptamine) is a psychedelic brominated indole alkaloid found in the sponges Smenospongia aurea and Smenospongia echina, as well as in Verongula rigida (0.00142% dry weight) alongside 5,6-Dibromo-DMT (0.35% dry weight) and seven other alkaloids.[1][2][3][4] It is the 5-bromo derivative of DMT, a psychedelic found in many plants and animals.

Legal status
Legal status
  • DE: NpSG (Industrial and scientific use only)
  • UK: Class A
CAS Number
PubChem CID
CompTox Dashboard (EPA)
Chemical and physical data
Molar mass267.170 g·mol−1
3D model (JSmol)

5-Bromo-DMT has a pEC50 value of 5.51 for the 5-HT2A receptor.[5]

Animal studies on 5-Bromo-DMT showed that it produces effects suggestive of sedative and antidepressant activity and caused significant reduction of locomotor activity in the rodent FST model.[6]

5-Bromo-DMT was reported to be psychoactive at 20–50 mg via vaporization with mild psychedelic-like activity.[7]


  1. Mark T. Hamann; Anna J. Kochanowska; Abir El-Alfy; Rae R. Matsumoto; Angelo Boujos (2 February 2012). "Patent US 20120029010 - Method to use compositions having antidepressant anxiolytic and other neurological activity and compositions of matter". Retrieved 21 October 2015.
  2. Arlette Longeon; Brent R. Copp; Elodie Quévrain; Mélanie Roué; Betty Kientz; Thierry Cresteil; Sylvain Petek; Cécile Debitus; Marie-Lise Bourguet-Kondracki (May 2011). "Bioactive Indole Derivatives from the South Pacific Marine Sponges Rhopaloeides odorabile and Hyrtios sp". Marine Drugs. 9 (5): 879–888. doi:10.3390/md9050879. PMC 3111189. PMID 21673896.
  3. Jin-Feng Hu; John A. Schetz; Michelle Kelly; Jiang-Nan Peng; Kenny K. H. Ang; Horst Flotow; Chung Yan Leong; Siew Bee Ng; Antony D. Buss; Scott P. Wilkins; Mark T. Hamann (March 2002). "New Antiinfective and Human 5-HT2 Receptor Binding Natural and Semisynthetic Compounds from the Jamaican Sponge Smenospongia aurea". Journal of Natural Products. 65 (4): 476–480. doi:10.1021/np010471e. PMID 11975483.
  4. Peter Djura; Donald B. Stierle; Brian Sullivan; D. John Faulkner; Edward V. Arnold; Jon Clardy (April 1980). "Some metabolites of the marine sponges Smenospongia aurea and Smenospongia (.ident.Polyfibrospongia) echina". Journal of Organic Chemistry. 45 (8): 1435–1441. doi:10.1021/jo01296a019.
  5. Thorsten Matzdorf (10 March 2015). "5-Carboxamidotryptamin-Derivate als Liganden für 5-HT7- und 5-HT2A-Rezeptoren: Synthese und In-vitro-Pharmakologie" (in German). Universität Regensburg. Retrieved 21 October 2015.
  6. Anna J. Kochanowska; Karumanchi V. Rao; Suzanne Childress; Abir El-Alfy; Rae R. Matsumoto; Michelle Kelly; Gina S. Stewart; Kenneth J. Sufka; Mark T. Hamann (January 2008). "Secondary Metabolites from Three Florida Sponges with Antidepressant Activity". Journal of Natural Products. 71 (2): 186–189. doi:10.1021/np070371u. PMC 4918908. PMID 18217716.
  7. Hamilton Morris; Jason Wallach (26 March 2013). "Sea DMT: God Molecule or Barnacle Repellent?". Vice. Retrieved 21 October 2015.
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