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5-MeO-DALT 3D BS.png
Legal status
Legal status
  • DE: NpSG (Industrial and scientific use only)
  • UK: Class A
  • Illegal in China, Japan, Singapore, Sweden, Florida and Louisiana
  • N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-N-(prop-2-en-1-yl)prop-2-en-1-amine
CAS Number
PubChem CID
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Chemical and physical data
Formula C17H22N2O
Molar mass 270.376 g·mol−1
3D model (JSmol)
  • InChI=1S/C17H22N2O/c1-4-9-19(10-5-2)11-8-14-13-18-17-7-6-15(20-3)12-16(14)17/h4-7,12-13,18H,1-2,8-11H2,3H3 Yes check.svgY
 X mark.svgNYes check.svgY  (what is this?)    (verify)

5-MeO-DALT or N,N-di allyl-5-methoxy tryptamine is a psychedelic tryptamine first synthesized by Alexander Shulgin.



The full name of the chemical is N-allyl-N-[2-(5-methoxy-1H-indol-3-yl)ethyl] prop-2-en-1- amine. It is related to the compounds 5-MeO-DPT and DALT.

In April 2020, Chadeayne et al. solved the crystal structure of the freebase form of 5-MeO-DALT. [1]


5-MeO-DALT binds to 5-HT1A, 5-HT1D, 5-HT1E, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT6, α2A, α2B, α2C, H1, κ-opioid, σ1 and σ2 receptors with Ki values lower than 10μM and also acts as a DAT and SERT monoamine reuptake inhibitor. [2]

Binding sitepKi ± SEM at binding site
5-HT1A7.70 ± 0.10
5-HT1B6.13 ± 0.04
5-HT1D7.00 ± 0.10
5-HT1E6.30 ± 0.05
5-HT2A6.66 ± 0.08
5-HT2B7.23 ± 0.05
5-HT2C6.34 ± 0.08
5-HT5A5.48 ± 0.04
5-HT66.81 ± 0.03
5-HT77.05 ± 0.07
α2A6.67 ± 0.07
α2B6.14 ± 0.04
α2C5.83 ± 0.06
H16.30 ± 0.06
H35.77 ± 0.04
κOR5.95 ± 0.07
μOR< 5.00
σ16.52 ± 0.06
σ26.60 ± 0.05
DAT5.50 ± 0.20
NET< 5.00
SERT6.30 ± 0.05

The metabolism and cytochrome P450 inhibition of 5-MeO-DALT has been described in scientific literature. [3] [4]


The first material regarding the synthesis and effects of 5-MeO-DALT was sent from Alexander Shulgin to a research associate named Murple in May 2004, after which it was circulated online. In June 2004 5-MeO-DALT became available from internet research chemical vendors after being synthesized by commercial laboratories in China. In August 2004 the synthesis and effects of 5-MeO-DALT were published by Erowid. [5]


Doses ranging from 12–20 mg were tested by Alexander Shulgin's research group. [6]

Therapeutic use

Numerous anecdotal reports [7] and a small-scale trial [8] indicate the potential of 5-MeO-DALT for the treatment of cluster headache, one of the most excruciating conditions known to medicine. [9] These observations are consistent with evidence of efficacy of other chemically-related indoleamines in the treatment of cluster headache. [10]

Side effects

There is no published literature on the toxicity of 5-MeO-DALT.


As of October 2015 5-MeO-DALT is a controlled substance in China. [11]


5-MeO-DALT became a controlled substance in Japan from April 2007, by amendment to the Pharmaceutical Affairs Law. [12]

United Kingdom

5-MeO-DALT became a Class A drug in the UK on January 7, 2015 after an update to the tryptamine blanket ban.


5-MeO-DALT is listed in the Fifth Schedule of the Misuse of Drugs Act (MDA) and therefore illegal in Singapore as of May 2015. [13]


Sveriges riksdag added 5-MeO-DALT to schedule I ("substances, plant materials and fungi which normally do not have medical use") as narcotics in Sweden as of May 1, 2012, published by Medical Products Agency in their regulation LVFS 2012:6 listed as 5-MeO-DALT N-allyl-N-[2-(5-metoxi-1H-indol-3-yl)etyl]-prop-2-en-1-amin. [14]

United States

5-MeO-DALT is not scheduled at the federal level in the United States, [15] but it is likely that it could be considered an analog of 5-Meo-DiPT, which is a controlled substance in USA, or an analog of another tryptamine, in which case purchase, sale, or possession could be prosecuted under the Federal Analog Act.


5-MeO-DALT is a Schedule I controlled substance in the state of Florida making it illegal to buy, sell, or possess in Florida. [16]


5-MeO-DALT is a Schedule I controlled substance in the state of Louisiana making it illegal to buy, sell, or possess in Louisiana. [17]


  1. Chadeayne AR, Pham DN, Golen JA, Manke DR (April 2020). "5-MeO-DALT: the freebase of N,N-diallyl-5-meth-oxy-tryptamine". IUCrData. International Union of Crystallography (IUCr). 5 (Pt 4): x200498. doi: 10.1107/s2414314620004988 . PMC   9462216 . PMID   36338299.
  2. Cozzi NV, Daley PF (February 2016). "Receptor binding profiles and quantitative structure-affinity relationships of some 5-substituted-N,N-diallyltryptamines". Bioorganic & Medicinal Chemistry Letters. Elsevier BV. 26 (3): 959–964. doi:10.1016/j.bmcl.2015.12.053. PMID   26739781.
  3. Michely JA, Helfer AG, Brandt SD, Meyer MR, Maurer HH (October 2015). "Metabolism of the new psychoactive substances N,N-diallyltryptamine (DALT) and 5-methoxy-DALT and their detectability in urine by GC-MS, LC-MSn, and LC-HR-MS-MS" (PDF). Analytical and Bioanalytical Chemistry. Springer Science and Business Media LLC. 407 (25): 7831–7842. doi:10.1007/s00216-015-8955-0. PMID   26297461. S2CID   26086597.
  4. Dinger J, Woods C, Brandt SD, Meyer MR, Maurer HH (January 2016). "Cytochrome P450 inhibition potential of new psychoactive substances of the tryptamine class" (PDF). Toxicology Letters. Elsevier BV. 241: 82–94. doi:10.1016/j.toxlet.2015.11.013. PMID   26599973.
  5. Morris H, Smith A (2010-05-02). "The Last Interview With Alexander Shulgin". VICE.
  6. Sasha Shulgin - 5-MeO-DALT, 2C-B-FLY & 5-EtOs. Archived from the original on 2021-12-13. Retrieved 3 September 2015 via YouTube.
  7. Post M (2015). "Cluster Headache Patient Survey: 5-MeO-DALT". Figshare. doi:10.6084/M9.FIGSHARE.1372467.V3.
  8. Post M (2014). "Treatment of Cluster Headache Symptoms using Synthetic Tryptamine N,N-Diallyl-5 Methoxytryptamine". Figshare. doi:10.6084/M9.FIGSHARE.1119697.V1. S2CID   73807327.
  9. Brandt RB, Doesborg PG, Haan J, Ferrari MD, Fronczek R (February 2020). "Pharmacotherapy for Cluster Headache". CNS Drugs. Springer Science and Business Media LLC. 34 (2): 171–184. doi:10.1007/s40263-019-00696-2. PMC   7018790 . PMID   31997136.
  10. Schindler EA, Gottschalk CH, Weil MJ, Shapiro RE, Wright DA, Sewell RA (2015-10-20). "Indoleamine Hallucinogens in Cluster Headache: Results of the Clusterbusters Medication Use Survey". Journal of Psychoactive Drugs. Informa UK Limited. 47 (5): 372–381. doi:10.1080/02791072.2015.1107664. PMID   26595349. S2CID   21948146.
  11. "关于印发《非药用类麻醉药品和精神药品列管办法》的通知" (in Chinese). China Food and Drug Administration. 27 September 2015. Archived from the original on 1 October 2015. Retrieved 1 October 2015.
  12. "厚生労働省:平成18年度無承認無許可医薬品等買上調査の結果について" (in Japanese). Retrieved 24 July 2015.
  13. "CNB NEWS RELEASE". Central Narcotics Bureau (CNB). 30 April 2015. Archived from the original on 15 July 2015. Retrieved 24 July 2015.
  14. Rångemark Åkerman CR (20 April 2012). "Föreskrifter om ändring i Läkemedelsverkets föreskrifter (LVFS 2011:10) om förteckningar över narkotika" (PDF) (in Swedish). Retrieved 3 September 2015.
  15. "§1308.11 Schedule I." Archived from the original on 2009-08-27. Retrieved 2014-12-17.
  16. "Chapter 893 - DRUG ABUSE PREVENTION AND CONTROL". Florida Statutes.
  17. "Louisiana State Legislature" . Retrieved 3 September 2015.

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