Chemistry:25E-NBOMe
25E-NBOMe, also known as 2C-E-NBOMe or NBOMe-2C-E, is a derivative of the phenethylamine 2C-E. It acts in a similar manner to related compounds such as 25I-NBOMe, which are potent agonists at the 5-HT2A receptor.[1][2] 25E-NBOMe has been sold as a drug and produces similar effects in humans to related compounds such as 25I-NBOMe and 25C-NBOMe.
Use and effects
The dose range of 25E-NBOMe has been given as 0.1 to 1.0 mg sublingually, with a typical dose estimate of 0.3 mg.[3]
Toxicity and harm potential
Neurotoxic and cardiotoxic actions
Emergency treatment
Interactions
Pharmacology
Pharmacodynamics
| Target | Affinity (Ki, nM) |
|---|---|
| 5-HT1A | 1,680–3,500 (Ki) 13,700 (EC50) 38% (Emax) |
| 5-HT1B | 3,593 |
| 5-HT1D | ND |
| 5-HT1E | ND |
| 5-HT1F | ND |
| 5-HT2A | 0.127–0.6 (Ki) 0.40–160 (EC50) 28–157% (Emax) |
| 5-HT2B | 1.11–2.14 (Ki) 23.5–60 (EC50) 26–49% (Emax) |
| 5-HT2C | 0.311–7.2 (Ki) 0.95–9.77 (EC50) 92–101% (Emax) |
| 5-HT3 | ND |
| 5-HT4 | ND |
| 5-HT5A | ND |
| 5-HT6 | 148.3 |
| 5-HT7 | ND |
| α1A | 530 |
| α1B, α1D | ND |
| α2A | 260 |
| α2B, α2C | ND |
| β1–β3 | ND |
| D1 | 4,900 |
| D2 | 1,500 |
| D3 | 3,200 |
| D4, D5 | ND |
| H1 | 1,400 |
| H2–H4 | ND |
| M1–M5 | ND |
| I1 | ND |
| σ1, σ2 | ND |
| MOR | ND (Ki) >12,400 (EC50) 20–103% (Emax) |
| DOR | ND |
| KOR | ND |
| TAAR1 | 1,100 (Ki) (mouse) 260 (Ki) (rat) 1,800 (EC50) (mouse) 650 (EC50) (rat) >10,000 (EC50) (human) 46% (Emax) (mouse) 37% (Emax) (rat) |
| SERT | 1,590–1,700 (Ki) 1,440–8,300 (IC50) IA (EC50) |
| NET | 3,000–5,400 (Ki) 2,310–11,000 (IC50) IA (EC50) |
| DAT | 8,100–19,600 (Ki) 34,000–100,000 (IC50) IA (EC50) |
| Notes: The smaller the value, the more avidly the drug binds to the site. All proteins are human unless otherwise specified. Refs: [4][5][6][7][8][9][10][11][12] | |
25E-NBOMe acts as an agonist of the serotonin 5-HT2 receptors.[13] In accordance with its psychedelic effects in humans, it produces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents.[13][14]
25E-NBOMe has shown reinforcing effects in rodents.[13][14] This included conditioned place preference (CPP) and self-administration.[13][14] The reinforcing effects of 25E-NBOMe were mediated by increased dopaminergic signaling in the nucleus accumbens.[13][14] Blockade of the dopamine D1 receptor could attenuate the CPP induced by 25E-NBOMe.[13][14]
History
25E-NBOMe was first described in the scientific literature by 2012.[15]
Society and culture
Legal status
Canada
25E-NBOMe is a controlled substance in Canada under phenethylamine blanket-ban language.[16]
Sweden
Sweden's public health agency classified 25E-NBOMe as a narcotic substance, on January 18, 2019.[17]
United Kingdom
This substance is a Class A drug in the United Kingdom as a result of the N-benzylphenethylamine catch-all clause in the Misuse of Drugs Act 1971.[18]
United States
25E-NBOMe is not an explicitly controlled substance in the United States.[19] However, it could be considered a controlled substance under the Federal Analogue Act if intended for human consumption.
See also
Notes
References
- ↑ "Synthesis and structure-activity relationships of N-benzyl phenethylamines as 5-HT2A/2C agonists". ACS Chemical Neuroscience 5 (3): 243–249. March 2014. doi:10.1021/cn400216u. PMID 24397362.
- ↑ Hansen M (2010-12-16). Design and Synthesis of Selective Serotonin Receptor Agonists for Positron Emission Tomography Imaging of the Brain (Ph.D. thesis). University of Copenhagen. doi:10.13140/RG.2.2.33671.14245.
- ↑ "Monoamine Transporter and Receptor Interaction Profiles in Vitro Predict Reported Human Doses of Novel Psychoactive Stimulants and Psychedelics". Int J Neuropsychopharmacol 21 (10): 926–931. October 2018. doi:10.1093/ijnp/pyy047. PMID 29850881. "Supplementary Table S2. Dose estimates and data sources for psychedelics.".
- ↑ "Kᵢ Database". 20 June 2025. https://pdspdb.unc.edu/kidb2/kidb/web/kis-results/index?KisResultsSearch%5Binput_receptors%5D=&KisResultsSearch%5Binput_sources%5D=&KisResultsSearch%5Binput_species%5D=&KisResultsSearch%5Binput_hot_ligands%5D=&KisResultsSearch%5Binput_test_ligands%5D=&KisResultsSearch%5Binput_test_ligands%5D%5B%5D=14700&KisResultsSearch%5Binput_test_ligands%5D%5B%5D=14682&KisResultsSearch%5Binput_citations%5D=&KisResultsSearch%5BsearchType%5D=&KisResultsSearch%5Bki_val_from%5D=&KisResultsSearch%5Bki_val_to%5D=&KisResultsSearch%5Bcustom_ki_val%5D=.
- ↑ Hansen, M. (2010). Design and Synthesis of Selective Serotonin Receptor Agonists for Positron Emission Tomography Imaging of the Brain: PhD Thesis. Faculty of Pharmaceutical Sciences, University of Copenhagen. https://bitnest.netfirms.com/external/Theses/Hansen2011
- ↑ "Synthesis and structure-activity relationships of N-benzyl phenethylamines as 5-HT2A/2C agonists". ACS Chem Neurosci 5 (3): 243–249. March 2014. doi:10.1021/cn400216u. PMID 24397362.
- ↑ "Receptor interaction profiles of novel N-2-methoxybenzyl (NBOMe) derivatives of 2,5-dimethoxy-substituted phenethylamines (2C drugs)". Neuropharmacology 99: 546–553. December 2015. doi:10.1016/j.neuropharm.2015.08.034. PMID 26318099. https://psilosybiini.info/paperit/Receptor%20interaction%20profiles%20of%20novel%20N-2-methoxybenzyl%20(NBOMe)%20derivatives%20of%202,5-dimethoxy-substituted%20phenethylamines%20(2C%20drugs)%20(Rickli%20et%20al.,%202015).pdf.
- ↑ "Neurochemical pharmacology of psychoactive substituted N-benzylphenethylamines: High potency agonists at 5-HT2A receptors". Biochem Pharmacol 158: 27–34. December 2018. doi:10.1016/j.bcp.2018.09.024. PMID 30261175.
- ↑ "In vitro structure-activity relationship determination of 30 psychedelic new psychoactive substances by means of β-arrestin 2 recruitment to the serotonin 2A receptor". Arch Toxicol 94 (10): 3449–3460. October 2020. doi:10.1007/s00204-020-02836-w. PMID 32627074. Bibcode: 2020ArTox..94.3449P.
- ↑ "In vitro characterization of new psychoactive substances at the μ-opioid, CB1, 5HT1A, and 5-HT2A receptors-On-target receptor potency and efficacy, and off-target effects". Forensic Sci Int 317. December 2020. doi:10.1016/j.forsciint.2020.110553. PMID 33160102.
- ↑ "In Vitro Characterization of Psychoactive Substances at Rat, Mouse, and Human Trace Amine-Associated Receptor 1". J Pharmacol Exp Ther 357 (1): 134–144. April 2016. doi:10.1124/jpet.115.229765. PMID 26791601. https://d1wqtxts1xzle7.cloudfront.net/74120533/eae6c6e62565b82d46b4d111bbea0f77b9c2-libre.pdf?1635931703=&response-content-disposition=inline%3B+filename%3DIn_Vitro_Characterization_of_Psychoactiv.pdf&Expires=1746838268&Signature=Sy4fJ90yUhxs68314NxYsW5PAaNrBGePRu35WRR4PIF-3YC7Z~sLdnCn5wfqqbLg9bDEGdt~oW55ugMP3D3jgA0BoRI~~GOb0NQOwrtfUEQK1PQs1uuN9qg5Y1ct8z5NsABm44RgtukkwRMdU6fO7OlfIsQ68hOiFk129Ll7UYqldxD2f1xhE2fTTfsxSpb8cMCJzHn7-ItqLdwnAUPFK7WggDIjmY1kCnaHLwIxMwdJCAq8L6DYzSTg7pZkbR8qlou~GXbTPQt~gYpyZTJp5hgW-7V6K5wLlQ7Z2xE7B0f9wEfuc1W1QNafg125Tr-vvAe4LEGKXV58bnn1bpfWKw__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA.
- ↑ "Off-target activity of NBOMes and NBOMe analogs at the µ opioid receptor". Arch Toxicol 97 (5): 1367–1384. May 2023. doi:10.1007/s00204-023-03465-9. PMID 36853332. Bibcode: 2023ArTox..97.1367D.
- ↑ 13.0 13.1 13.2 13.3 13.4 13.5 "Toxicodynamic insights of 2C and NBOMe drugs - Is there abuse potential?". Toxicol Rep 14. June 2025. doi:10.1016/j.toxrep.2025.101890. PMID 39867514. Bibcode: 2025ToxR...1401890G.
- ↑ 14.0 14.1 14.2 14.3 14.4 "The novel psychoactive substance 25E-NBOMe induces reward-related behaviors via dopamine D1 receptor signaling in male rodents". Arch Pharm Res 47 (4): 360–376. April 2024. doi:10.1007/s12272-024-01491-4. PMID 38551761.
- ↑ Casale, J. F., & Hays, P. A. (2012). Characterization of eleven 2, 5-dimethoxy-N-(2-methoxybenzyl) phenethylamine (NBOMe) derivatives and differentiation from their 3-and 4-methoxybenzyl analogues—part I. Microgram Journal, 9(2), 84–109. https://www.dea.gov/sites/default/files/pr/microgram-journals/2012/mj9_84-109.pdf
- ↑ "Controlled Drugs and Substances Act". https://laws-lois.justice.gc.ca/eng/acts/c-38.8/FullText.html.
- ↑ "Sexton nya ämnen klassas som narkotika eller hälsofarlig vara" (in sv). Folkhälsomyndigheten. 18 January 2019. https://www.folkhalsomyndigheten.se/nyheter-och-press/nyhetsarkiv/2019/januari/sexton-nya-amnen-klassas-som-narkotika-eller-halsofarlig-vara/.
- ↑ "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014" (in en). http://www.legislation.gov.uk/uksi/2014/1106/made.
- ↑ Orange Book: List of Controlled Substances and Regulated Chemicals (January 2026), United States: U.S. Department of Justice: Drug Enforcement Administration (DEA): Diversion Control Division, January 2026, https://www.deadiversion.usdoj.gov/schedules/orangebook/orangebook.pdf
External links
