5-Chloro-DMT

5-Chloro-DMT
Clinical data
Other names5-Chloro-N,N-dimethyltryptamine; 5-Chloro-DMT; 5-Cl-DMT
Routes of
administration		Unknown[1][2]
Drug classSerotonin receptor agonist; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
Pharmacokinetic data
Onset of actionUnknown[1][2]
Duration of actionUnknown[1][2]
Identifiers
  • 2-(5-chloro-1H-indol-3-yl)-N,N-dimethylethanamine
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC12H15ClN2
Molar mass222.72 g·mol−1
3D model (JSmol)
  • CN(C)CCC1=CNC2=C1C=C(C=C2)Cl
  • InChI=1S/C12H15ClN2/c1-15(2)6-5-9-8-14-12-4-3-10(13)7-11(9)12/h3-4,7-8,14H,5-6H2,1-2H3
  • Key:BXYDWQABVPBLBU-UHFFFAOYSA-N

5-Chloro-DMT, or 5-Cl-DMT, also known as 5-chloro-N,N-dimethyltryptamine, is a psychedelic drug of the tryptamine family related to dimethyltryptamine (DMT) and other psychedelic tryptamines such as 5-bromo-DMT and 5-fluoro-DMT.[3] It has been encountered as a novel designer drug.[2][4][1]

Use and effects

5-Chloro-DMT was not included nor mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved).[5] No experience reports existed for the drug as of 2020.[2] In addition, its routes of administration and doses were unavailable as of 2020.[1] In any case, it is known that the closely structurally related psychedelics DMT, 5-bromo-DMT, and 5-MeO-DMT are all inactive orally.[6][5]

Interactions

See also: Psychedelic drug § Interactions, and Trip killer § Serotonergic psychedelic antidotes

Pharmacology

Pharmacodynamics

5-Chloro-DMT activities
Target Affinity (Ki, nM)
5-HT1A 33 (Ki)
41 (EC50Tooltip half-maximal effective concentration)
94% (EmaxTooltip maximal efficacy)
5-HT2A 134 (Ki)
310a (EC50)
45%a (Emax)
5-HT2C 55 (Ki)
22a (EC50)
81%a (Emax)
SERT 830 (Ki)
394 (IC50)
Notes: The smaller the value, the more avidly the drug interacts with the site. Footnotes: a = Stimulation of IP1Tooltip inositol phosphate formation. Sources: [7]

5-Chloro-DMT acts as a serotonin receptor agonist.[3][8][9][10] It is known to have affinity for and act as an agonist of the serotonin 5-HT1A, 5-HT2A, and 5-HT2C receptors.[3][7][11][12] The drug shows higher affinity for the serotonin 5-HT1A receptor compared to unsubstituted dimethyltryptamine (DMT), with around 10-fold higher selectivity for this receptor over the serotonin 5-HT2A receptor.[3] It exhibits lower efficacy in terms of serotonin 5-HT2A receptor calcium mobilization relative to the parent compound DMT.[3]

The drug produces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents, with intermediate potency among halogenated derivatives.[3][10][13] In addition, it produces hypolocomotion and hypothermia, effects that appear to be mediated through serotonin 5-HT1A receptor activation.[3]

5-Chloro-DMT demonstrates similar biased agonism patterns at the serotonin 5-HT2A receptor compared to other halogenated derivatives, showing higher potency and efficacy for β-arrestin2 recruitment relative to miniGαq recruitment, with bias factors comparable to serotonin.[3]

Chemistry

Analogues

Analogues of 5-chloro-DMT include dimethyltryptamine (DMT), 5-fluoro-DMT, 5-bromo-DMT, 5-TFM-DMT, 6-fluoro-DMT, bretisilocin (5-fluoro-MET), 5-chloro-AMT, 6-fluoro-AMT, 7-chloro-AMT, and 5,N,N-TMT, among others.[3]

History

5-Chloro-DMT was first described in the scientific literature by Benington and colleagues by 1960.[14] It was encountered as a novel designer drug by 2020.[2][4][1]

Society and culture

Canada

5-Chloro-DMT is not a controlled substance in Canada as of 2025.[15]

United States

5-Chloro-DMT is not an explicitly controlled substance in the United States.[16] However, it could be considered a controlled substance under the Federal Analogue Act if intended for human consumption.

See also

References

  1. ^ a b c d e f "5-Cl-DMT". АИПСИН [AIPSIN] (in Russian). Retrieved 29 October 2025.
  2. ^ a b c d e f Catalani V, Arillotta D, Corkery JM, Guirguis A, Vento A, Schifano F (2020). "Identifying New/Emerging Psychoactive Substances at the Time of COVID-19; A Web-Based Approach". Front Psychiatry. 11 632405. doi:10.3389/fpsyt.2020.632405. PMC 7900492. PMID 33633599.
  3. ^ a b c d e f g h i Puigseslloses P, Nadal-Gratacós N, Fumàs B, Modenutti CP, Pottie E, Ortigosa JR, et al. (October 2025). "Neuropharmacology of halogenated DMT analogs: psychoplastogenic and antidepressant properties of 5-Br-DMT, a psychedelic derivative with low hallucinogenic potential". Molecular Psychiatry. doi:10.1038/s41380-025-03308-2. PMID 41120735.
  4. ^ a b "Analytical Report: 5-Cl-DMT" (PDF). Slovenia: Nacionalni Forenzični Laboratorij. July 2020.
  5. ^ a b Shulgin A, Shulgin A (September 1997). TiHKAL: The Continuation. Berkeley, California: Transform Press. ISBN 0-9630096-9-9. OCLC 38503252.
  6. ^ Morris H, Wallach J (26 March 2013). "Sea DMT: God Molecule or Barnacle Repellent?". Vice. Archived from the original on 26 March 2013. Retrieved 21 October 2015.
  7. ^ a b Kozell LB, Eshleman AJ, Swanson TL, Bloom SH, Wolfrum KM, Schmachtenberg JL, et al. (April 2023). "Pharmacologic Activity of Substituted Tryptamines at 5-Hydroxytryptamine (5-HT)2A Receptor (5-HT2AR), 5-HT2CR, 5-HT1AR, and Serotonin Transporter". The Journal of Pharmacology and Experimental Therapeutics. 385 (1): 62–75. doi:10.1124/jpet.122.001454. PMC 10029822. PMID 36669875.
  8. ^ Benington F, Morin RD, Clark LC (September 1960). "Synthesis of some 5- and 6-chloro, 5-methyl, and 5,6,7-trimethyl derivatives of tryptamine". Journal of Organic Chemistry. 25 (9): 1542–1547. doi:10.1021/jo01079a020.
  9. ^ Ibrahim MA, El-Alfy AT, Ezel K, Radwan MO, Shilabin AG, Kochanowska-Karamyan AJ, et al. (August 2017). "Marine Inspired 2-(5-Halo-1H-indol-3-yl)-N,N-dimethylethanamines as Modulators of Serotonin Receptors: An Example Illustrating the Power of Bromine as Part of the Uniquely Marine Chemical Space". Marine Drugs. 15 (8): 248. doi:10.3390/md15080248. PMC 5577603. PMID 28792478.
  10. ^ a b Dong C, Ly C, Dunlap LE, Vargas MV, Sun J, Hwang IW, et al. (May 2021). "Psychedelic-inspired drug discovery using an engineered biosensor". Cell. 184 (10): 2779–2792.e18. doi:10.1016/j.cell.2021.03.043. PMC 8122087. PMID 33915107.
  11. ^ Chen X, Li J, Yu L, Maule F, Chang L, Gallant JA, et al. (October 2023). "A cane toad (Rhinella marina) N-methyltransferase converts primary indolethylamines to tertiary psychedelic amines". The Journal of Biological Chemistry. 299 (10) 105231. doi:10.1016/j.jbc.2023.105231. PMC 10570959. PMID 37690691.
  12. ^ Chen X, Li J, Yu L, Dhananjaya D, Maule F, Cook S, et al. (10 March 2023), Bioproduction platform using a novel cane toad (Rhinella marina) N-methyltransferase for psychedelic-inspired drug discovery (PDF), doi:10.21203/rs.3.rs-2667175/v1, retrieved 18 March 2025
  13. ^ Fumàs B, Nadal-Gratacós N, Pablo-Quesada A, Berzosa X, Camarasa J, Pubill D, et al. (2024). "5-halo-substituted DMT derivatives. Hallucinogenic response and early gene expression in mice". Neuroscience Applied. 3 104390. doi:10.1016/j.nsa.2024.104390.
  14. ^ Benington F, Morin RD, Clark LC (1960). "Synthesis of Some 5- and 6-Chloro, 5-Methyl, and 5,6,7-Trimethyl Derivatives of Tryptamine". The Journal of Organic Chemistry. 25 (9): 1542–1547. doi:10.1021/jo01079a020. ISSN 0022-3263. Retrieved 29 October 2025.
  15. ^ "Controlled Drugs and Substances Act". Department of Justice Canada. Retrieved 19 January 2026.
  16. ^ Orange Book: List of Controlled Substances and Regulated Chemicals (January 2026) (PDF), United States: U.S. Department of Justice: Drug Enforcement Administration (DEA): Diversion Control Division, January 2026
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