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DOI
Names
	Preferred IUPAC name 1-(4-Iodo-2,5-dimethoxyphenyl)propan-2-amine
Identifiers
CAS Number	64584-34-5; 82864-06-0 (R) ; 99665-04-0 (S) ; 42203-78-1 HCl;
3D model (JSmol)	Interactive image; Interactive image; Interactive image;
ChEMBL	ChEMBL6616 ;
ChemSpider	1192 ;
IUPHAR/BPS	147;
PubChem CID	1229;
UNII	Q2E57V2WS3 ;
CompTox Dashboard (EPA)	DTXSID7040520 ;
	InChI InChI=1S/C11H16INO2/c1-7(13)4-8-5-11(15-3)9(12)6-10(8)14-2/h5-7H,4,13H2,1-3H3 Key: BGMZUEKZENQUJY-UHFFFAOYSA-N ; InChI=1/C11H16INO2/c1-7(13)4-8-5-11(15-3)9(12)6-10(8)14-2/h5-7H,4,13H2,1-3H3 Key: BGMZUEKZENQUJY-UHFFFAOYAA;
	SMILES IC(C=C1OC)=C(OC)C=C1CC(C)N; IC(C=C1OC)=C(OC)C=C1C[C@@H](C)N; IC(C=C1OC)=C(OC)C=C1C[C@H](C)N;
Properties
Chemical formula	C11H16INO2
Molar mass	321.1558 g/mol
Melting point	201.5 °C (394.7 °F; 474.6 K) (hydrochloride)
Solubility in water	10 mg/mL
Pharmacology
Legal status	BR: Class F2 (Prohibited psychotropics); CA: Schedule I;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,5-Dimethoxy-4-iodoamphetamine (DOI) is a psychedelic drug and a substituted amphetamine. Unlike many other substituted amphetamines, however, it is not primarily a stimulant.^[3] DOI has a stereocenter and R-(−)-DOI is the more active stereoisomer. In neuroscience research, [¹²⁵I]-R-(−)-DOI is used as a radioligand and indicator of the presence of 5-HT_2A serotonin receptors. DOI's effects have been compared to LSD, although there are differences that experienced users can distinguish. Besides the longer duration, the trip tends to be more energetic than an LSD trip, with more body load and a different subjective visual experience. The after effects include residual stimulation and difficulty sleeping, which, depending on the dose, may persist for days.^[3] While rare, it is sometimes sold as a substitute for LSD, or even sold falsely as LSD, which may be dangerous because DOI does not have the same established safety profile as LSD.^[4]

Research

Research^[5] suggests that administration of (R)-DOI blocks pulmonary inflammation, mucus hyper-production, airway hyper-responsiveness and turns off key genes in in-lung immune response. These effects block the development of allergic asthma in a mouse model.

Several 5-HT_2A agonist hallucinogens including (R)-2,5-dimethoxy-4-iodoamphetamine DOI, TCB-2, LSD and LA-SS-Az have unexpectedly also been found to act as potent inhibitors of TNF, with DOI being the most active, showing TNF inhibition in the picomolar range, an order of magnitude more potent than its action as a hallucinogen.^[6]^[7]^[8]

Pharmacology

Binding Profile of DOI and its isomers
Receptor	K_i (racemic DOI)^[9]^{[failed verification]}	K_i (R-DOI)^[9]^{[failed verification]}	K_i (S-DOI)^[9]^{[failed verification]}	Intrinsic activity^[10]
5-HT_1A	2355 nM	3843 nM	ND	ND
5-HT_1B	1261 nM	ND	ND	ND
5-HT_1D	1241.3 nM	ND	ND	ND
5-HT_1E	2970 nM	ND	ND	ND
5-HT_1F	2125.44 nM	ND	ND	ND
5-HT_2A	0.68 nM	0.65 nM	0.65 nM	Partial agonist.
5-HT_2B	20.03 nM	53.70318 nM	28.183829 nM	Partial agonist/full agonist
5-HT_2C	2.38 nM	5.370318 nM	8.317638 nM	Full agonist when coupled to phospholipase A. Partial agonist (intrinsic efficacy = 53%), when coupled to phospholipase C.
5-HT_5A	1000 nM	ND	ND	ND
5-HT₆	>10000 nM	ND	ND	ND

DOI is a 5-HT_2A, 5-HT_2B and 5-HT_2C receptor agonist.^[10]

DOI has been shown to be an extremely potent inhibitor of tumour necrosis factor-alpha inflammation at picomolar concentrations in cell studies. TNF-alpha is an important target for research into degenerative conditions such as rheumatoid arthritis and Alzheimer's disease, where the disease process involves tissue damage through chronic inflammation. This could make DOI and other 5-HT_2A agonists an entirely new area for development of novel treatments for these conditions.^[11]

DOI has also been shown to induce rapid growth and reorganization of dendritic spines and synaptic connections with other neurons, processes known to underlie neuroplasticity.^[12]

DOI is an agonist of the rat trace amine-associated receptor 1 (TAAR1).^[13]

History

DOI was first synthesized by Alexander Shulgin.^[3] The radioactive iodine-125 form of DOI for PET imaging was first developed in the lab of David E. Nichols.

In January 2007, British police reported that three young men had fallen ill, reportedly, after taking DOI at a rave in Biggleswade, near Milton Keynes, and warned others who had taken it to seek medical attention. This would appear to be the first indication that DOI has found more widespread use as a recreational drug in the UK.^[14]

South Australian man Cody Edwards who brutally murdered Synamin Bell controversially plead guilty to the lesser sentence of manslaughter after attesting that the drug DOI had induced paranoia, and that he had subsequently acted in ‘self-defence’ when he had beaten the mother-of-three to death with a dumbbell, resulting in over fifty wounds.^[15]

Legal status

Australia

The Standard for the Uniform Scheduling of Medicines and Poisons (SUSMP) of Australia does not list DOI as a prohibited substance.^[16]

Canada

Listed as a Schedule 1^[17] as it is an analogue of amphetamine.^[18] The CDSA was updated as a result of the Safe Streets and Communities Act, changing amphetamines from Schedule 3 to Schedule 1.^[19]

Denmark

Illegal since 8 April 2007.^[20]

Finland

DOI is classified as a psychoactive substance banned from the consumer market in Finland.^[21]

Sweden

Sveriges riksdag added DOI to schedule I ("substances, plant materials and fungi which normally do not have medical use") as narcotics in Sweden as of August 30, 2007, published by Medical Products Agency in their regulation LVFS 2007:10 listed as DOI, 4-jod-2,5-dimetoxi-amfetamin.^[22]

United States

As of 2023, DOI is not scheduled in the United States,^[23] but it is likely that DOI would be considered an analog (of DOB), in which case, sales or possession could be prosecuted under the Federal Analogue Act. In December 2023, the US Drug Enforcement Administration issued a notice of proposed rulemaking that would classify both 2,5-dimethoxy-4-iodoamphetamine and 2,5-dimethoxy-4-chloroamphetamine as schedule I controlled substances.^[24]

DOI is regularly used in animal and in vitro research.^[25] Scheduling DOI could cause problems for medical researchers.^[24]

US State of Florida

DOI is a Schedule I controlled substance in the state of Florida.^[26]

References

^ "D101 DOI hydrochloride ≥98% (HPLC), solid". Retrieved 13 April 2008.
^ Anvisa (2023-07-24). "RDC Nº 804 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 804 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-07-25). Archived from the original on 2023-08-27. Retrieved 2023-08-27.
^ ^a ^b ^c Shulgin, A; Shulgin, A (1990). "#67 DOI". PiHKAL: A Chemical Love Story. Transform Press. ISBN 978-0963009609. Archived from the original on 2014-10-27. Retrieved 2014-12-17.
^ "LSD Blotter Acid Mimics (Actually containing 4-IODO-2,5-DIMETHOXYAMPHETAMINE (DOI) and 4-CHLORO-2,5-DIMETHOXYAMPHETAMINE (DOC)) in Lantana, Florida". DEA Microgram Bulletin. Washington, DC: Office of Forensic Sciences, Drug Enforcement Administration. June 2008. Archived from the original on 2009-02-04. Retrieved 12 February 2009.
^ "LSU Health New Orleans research finds psychedelic drug prevents asthma development in mice". EurekAlert!.
^ Miller KJ, Gonzalez HA (December 1998). "Serotonin 5-HT2A receptor activation inhibits cytokine-stimulated inducible nitric oxide synthase in C6 glioma cells". Ann. N. Y. Acad. Sci. 861 (1): 169–73. Bibcode:1998NYASA.861..169M. doi:10.1111/j.1749-6632.1998.tb10188.x. PMID 9928254. S2CID 23264746.
^ Yu B, Becnel J, Zerfaoui M, Rohatgi R, Boulares AH, Nichols CD (November 2008). "Serotonin 5-hydroxytryptamine(2A) receptor activation suppresses tumor necrosis factor-alpha-induced inflammation with extraordinary potency". J. Pharmacol. Exp. Ther. 327 (2): 316–23. doi:10.1124/jpet.108.143461. PMID 18708586. S2CID 25374241.
^ Pelletier M, Siegel RM (December 2009). "Wishing away inflammation? New links between serotonin and TNF signaling". Mol. Interv. 9 (6): 299–301. doi:10.1124/mi.9.6.5. PMC 2861806. PMID 20048135.
^ ^a ^b ^c Roth, BL; Driscol, J (12 January 2011). "PDSP K_i Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Archived from the original on 8 November 2013. Retrieved 4 March 2014.
^ ^a ^b Canal, CE; Morgan, D (July 2012). "Head-twitch response in rodents induced by the hallucinogen 2,5-dimethoxy-4-iodoamphetamine: a comprehensive history, a re-evaluation of mechanisms, and its utility as a model". Drug Testing and Analysis. 4 (7–8): 556–576. doi:10.1002/dta.1333. PMC 3722587. PMID 22517680.
^ Yu, B; Becnel, J; Zerfaoui, M; Rohatgi, R; Boulares, AH; Nichols, CD (2008). "Serotonin 5-Hydroxytryptamine2A Receptor Activation Suppresses Tumor Necrosis Factor-α-Induced Inflammation with Extraordinary Potency". Journal of Pharmacology and Experimental Therapeutics. 327 (2): 316–323. doi:10.1124/jpet.108.143461. PMID 18708586. S2CID 25374241.
^ Jones, KA; Srivastava, DP; Allen, JA; Strachan, RT; Roth, BL; Penzes, P (17 November 2009). "Rapid modulation of spine morphology by the 5-HT2A serotonin receptor through kalirin-7 signaling". Proceedings of the National Academy of Sciences. 106 (46): 19575–19580. Bibcode:2009PNAS..10619575J. doi:10.1073/pnas.0905884106. PMC 2780750. PMID 19889983.
^ Bunzow JR, Sonders MS, Arttamangkul S, Harrison LM, Zhang G, Quigley DI, Darland T, Suchland KL, Pasumamula S, Kennedy JL, Olson SB, Magenis RE, Amara SG, Grandy DK (December 2001). "Amphetamine, 3,4-methylenedioxymethamphetamine, lysergic acid diethylamide, and metabolites of the catecholamine neurotransmitters are agonists of a rat trace amine receptor". Mol Pharmacol. 60 (6): 1181–1188. doi:10.1124/mol.60.6.1181. PMID 11723224.
^ "New drug alert as three taken ill". BBC News. 29 January 2007.
^ "Man sentenced to prison for manslaughter of partner, as government moves to close 'defence loophole' - ABC News". amp.abc.net.au. Retrieved 2024-09-06.
^ Gill, A (22 July 2013). "POISONS STANDARD 2013" (PDF). Therapeutic Goods Administration. Australian Government Department of Health and Ageing. Retrieved 4 March 2014.
^ "Controlled Drugs and Substances Act : Legislative history · Schedule I · Section 19: Tramadol [Proposed]; Amphetamines". isomerdesign.com. Archived from the original on 2022-03-31. Retrieved 2012-11-27.
^ "Controlled Drugs and Substances Act : Definitions and Interpretations". isomerdesign.com. Archived from the original on 2013-11-10. Retrieved 2012-11-27.
^ [1] (in English)
^ "Erowid DOC Vault : Legal Status". www.erowid.org.
^ "FINLEX ® - Ajantasainen lainsäädäntö: Valtioneuvoston asetus kuluttajamarkkinoilta… 1130/2014".
^ "Läkemedelsverkets föreskrifter - LVFS och HSLF-FS | Läkemedelsverket" (PDF).
^ "PART 1308 - Section 1308.11 Schedule I". www.deadiversion.usdoj.gov. Archived from the original on 2009-08-27. Retrieved 2014-12-17.
^ ^a ^b "Schedules of Controlled Substances: Placement of 2,5-dimethoxy-4-iodoamphetamine (DOI) and 2,5-dimethoxy-4-chloroamphetamine (DOC) in Schedule I". www.regulations.gov.
^ Mario de la Fuente Revenga; Bohan Zhu; Christopher A. Guevara; George W. Huntley; Chang Lu; Javier González-Maeso (2021). "Prolonged epigenomic and synaptic plasticity alterations following single exposure to a psychedelic in mice". Cell Reports. 37 (3): 109836. doi:10.1016/j.celrep.2021.109836. PMC 8582597. PMID 34686347.
^ "Statutes & Constitution :View Statutes : Online Sunshine". leg.state.fl.us.

External links

[titleD101_DOI_hydrochloride_≥98%_(HPLC),_solid-1] "D101 DOI hydrochloride ≥98% (HPLC), solid". Retrieved 13 April 2008.

[2] Anvisa (2023-07-24). "RDC Nº 804 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 804 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-07-25). Archived from the original on 2023-08-27. Retrieved 2023-08-27.

[pihkal-3] Shulgin, A; Shulgin, A (1990). "#67 DOI". PiHKAL: A Chemical Love Story. Transform Press. ISBN 978-0963009609. Archived from the original on 2014-10-27. Retrieved 2014-12-17.

[dea_micro-4] "LSD Blotter Acid Mimics (Actually containing 4-IODO-2,5-DIMETHOXYAMPHETAMINE (DOI) and 4-CHLORO-2,5-DIMETHOXYAMPHETAMINE (DOC)) in Lantana, Florida". DEA Microgram Bulletin. Washington, DC: Office of Forensic Sciences, Drug Enforcement Administration. June 2008. Archived from the original on 2009-02-04. Retrieved 12 February 2009.

[5] "LSU Health New Orleans research finds psychedelic drug prevents asthma development in mice". EurekAlert!.

[pmid9928254-6] Miller KJ, Gonzalez HA (December 1998). "Serotonin 5-HT2A receptor activation inhibits cytokine-stimulated inducible nitric oxide synthase in C6 glioma cells". Ann. N. Y. Acad. Sci. 861 (1): 169–73. Bibcode:1998NYASA.861..169M. doi:10.1111/j.1749-6632.1998.tb10188.x. PMID 9928254. S2CID 23264746.

[pmid18708586-7] Yu B, Becnel J, Zerfaoui M, Rohatgi R, Boulares AH, Nichols CD (November 2008). "Serotonin 5-hydroxytryptamine(2A) receptor activation suppresses tumor necrosis factor-alpha-induced inflammation with extraordinary potency". J. Pharmacol. Exp. Ther. 327 (2): 316–23. doi:10.1124/jpet.108.143461. PMID 18708586. S2CID 25374241.

[pmid20048135-8] Pelletier M, Siegel RM (December 2009). "Wishing away inflammation? New links between serotonin and TNF signaling". Mol. Interv. 9 (6): 299–301. doi:10.1124/mi.9.6.5. PMC 2861806. PMID 20048135.

[PDSP-9] Roth, BL; Driscol, J (12 January 2011). "PDSP K_i Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Archived from the original on 8 November 2013. Retrieved 4 March 2014.

[ef-10] Canal, CE; Morgan, D (July 2012). "Head-twitch response in rodents induced by the hallucinogen 2,5-dimethoxy-4-iodoamphetamine: a comprehensive history, a re-evaluation of mechanisms, and its utility as a model". Drug Testing and Analysis. 4 (7–8): 556–576. doi:10.1002/dta.1333. PMC 3722587. PMID 22517680.

[11] Yu, B; Becnel, J; Zerfaoui, M; Rohatgi, R; Boulares, AH; Nichols, CD (2008). "Serotonin 5-Hydroxytryptamine2A Receptor Activation Suppresses Tumor Necrosis Factor-α-Induced Inflammation with Extraordinary Potency". Journal of Pharmacology and Experimental Therapeutics. 327 (2): 316–323. doi:10.1124/jpet.108.143461. PMID 18708586. S2CID 25374241.

[12] Jones, KA; Srivastava, DP; Allen, JA; Strachan, RT; Roth, BL; Penzes, P (17 November 2009). "Rapid modulation of spine morphology by the 5-HT2A serotonin receptor through kalirin-7 signaling". Proceedings of the National Academy of Sciences. 106 (46): 19575–19580. Bibcode:2009PNAS..10619575J. doi:10.1073/pnas.0905884106. PMC 2780750. PMID 19889983.

[BunzowSondersArttamangkul2001-13] Bunzow JR, Sonders MS, Arttamangkul S, Harrison LM, Zhang G, Quigley DI, Darland T, Suchland KL, Pasumamula S, Kennedy JL, Olson SB, Magenis RE, Amara SG, Grandy DK (December 2001). "Amphetamine, 3,4-methylenedioxymethamphetamine, lysergic acid diethylamide, and metabolites of the catecholamine neurotransmitters are agonists of a rat trace amine receptor". Mol Pharmacol. 60 (6): 1181–1188. doi:10.1124/mol.60.6.1181. PMID 11723224.

[14] "New drug alert as three taken ill". BBC News. 29 January 2007.

[15] "Man sentenced to prison for manslaughter of partner, as government moves to close 'defence loophole' - ABC News". amp.abc.net.au. Retrieved 2024-09-06.

[16] Gill, A (22 July 2013). "POISONS STANDARD 2013" (PDF). Therapeutic Goods Administration. Australian Government Department of Health and Ageing. Retrieved 4 March 2014.

[CDSA_Schedule_I:_Amphetamines-17] "Controlled Drugs and Substances Act : Legislative history · Schedule I · Section 19: Tramadol [Proposed]; Amphetamines". isomerdesign.com. Archived from the original on 2022-03-31. Retrieved 2012-11-27.

[Definitions_and_Interpretations-18] "Controlled Drugs and Substances Act : Definitions and Interpretations". isomerdesign.com. Archived from the original on 2013-11-10. Retrieved 2012-11-27.

[Safe_Streets_Act-19] [1] (in English)

[Erowid_DOC_Vault_:_Legal_status-20] "Erowid DOC Vault : Legal Status". www.erowid.org.

[21] "FINLEX ® - Ajantasainen lainsäädäntö: Valtioneuvoston asetus kuluttajamarkkinoilta… 1130/2014".

[22] "Läkemedelsverkets föreskrifter - LVFS och HSLF-FS | Läkemedelsverket" (PDF).

[PART_1308_—_SCHEDULES_OF_CONTROLLED_SUBSTANCES_-_1308.11_Schedule_I-23] "PART 1308 - Section 1308.11 Schedule I". www.deadiversion.usdoj.gov. Archived from the original on 2009-08-27. Retrieved 2014-12-17.

[Federal_Register_2023-24] "Schedules of Controlled Substances: Placement of 2,5-dimethoxy-4-iodoamphetamine (DOI) and 2,5-dimethoxy-4-chloroamphetamine (DOC) in Schedule I". www.regulations.gov.

[25] Mario de la Fuente Revenga; Bohan Zhu; Christopher A. Guevara; George W. Huntley; Chang Lu; Javier González-Maeso (2021). "Prolonged epigenomic and synaptic plasticity alterations following single exposure to a psychedelic in mice". Cell Reports. 37 (3): 109836. doi:10.1016/j.celrep.2021.109836. PMC 8582597. PMID 34686347.

[Florida_Statutes_-_Chapter_893_-_DRUG_ABUSE_PREVENTION_AND_CONTROL-26] "Statutes & Constitution :View Statutes : Online Sunshine". leg.state.fl.us.

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PROFILPELAJAR.COM

2,5-Dimethoxy-4-iodoamphetamine

Research

Pharmacology

History

Legal status

Australia

Canada

Denmark

Finland

Sweden

United States

US State of Florida

See also

References

External links

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