Chemistry:25I-NBOH

25I-NBOH
Legal status
Legal status	BR: F2 ; DE: NpSG (Industrial and scientific use only) ; UK: Class A ;
Identifiers
	IUPAC name 2-((2-(4-Iodo-2,5-dimethoxyphenyl)ethylamino)methyl)phenol;
CAS Number	919797-20-9 ;
PubChem CID	10001761;
ChemSpider	8177342 ;
UNII	W9G4BGW8K4;
Chemical and physical data
Formula	C17H20INO3
Molar mass	413.255 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES Oc2ccccc2CNCCc(c(OC)cc1I)cc1OC;
	InChI InChI=1S/C17H20INO3/c1-21-16-10-14(18)17(22-2)9-12(16)7-8-19-11-13-5-3-4-6-15(13)20/h3-6,9-10,19-20H,7-8,11H2,1-2H3 ; Key:FEUZHYRXGQTBRO-UHFFFAOYSA-N ;
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Short description: Chemical compound

25I-NBOH (NBOH-2CI, Cimbi-27, 2-C-I-NBOH) is a derivative of the phenethylamine-derived hallucinogen 2C-I that was discovered in 2006 by a team at Purdue University.

Pharmacology

25I-NBOH acts as a potent agonist of the 5HT_2A receptor,^[1]^[2] with a K_i of 0.061 nM at the human 5HT_2A receptor, similar to the better-known compound 25I-NBOMe, making it some twelve times the potency of 2C-I itself.

Although in vitro tests show this compound acts as an agonist, animal studies to confirm these findings have not been reported. While the N-benzyl derivatives of 2C-I had significantly increased binding to 5HT_2A receptor fragments, compared to 2C-I, the N-benzyl derivatives of DOI were less active compared to DOI.^[3]

25I-NBOH is notable as one of the most selective agonist ligands for the 5-HT_2A receptor with an EC₅₀ value of 0.074 nM with more than 400 times selectivity over the 5-HT_2C receptor.^[4]

Analytical chemistry

25I-NBOH is a labile molecule which fragments into 2C-I when analyzed by routine gas chromatography (GC) methods.^[5] A specific method for reliable identification of 25I-NBOH using GC/MS has been reported, allowing forensic forces worldwide to correctly identify this compound.^[6]

Legality

Sweden

The Riksdag added 25I-NBOH to Narcotic Drugs Punishments Act (sv) under Swedish schedule I ("substances, plant materials and fungi which normally do not have medical use") as of August 18, 2015, published by Medical Products Agency MPA) in regulation HSLF-FS 2015:12 listed as "25I-NBOH" and "2-([2-(4-jodo-2,5-dimetoxifenyl)etylamino]metyl)fenol".^[7]

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.^[8]

Analogues and derivatives

Analogues and derivatives of 2C-I:

25I-NB*:

References

↑ "Radiosynthesis and in vivo evaluation of a series of substituted 11C-phenethylamines as 5-HT (2A) agonist PET tracers". European Journal of Nuclear Medicine and Molecular Imaging 38 (4): 681–93. April 2011. doi:10.1007/s00259-010-1686-8. PMID 21174090.
↑ "Theoretical studies on the interaction of partial agonists with the 5-HT2A receptor". Journal of Computer-Aided Molecular Design 25 (1): 51–66. January 2011. doi:10.1007/s10822-010-9400-2. PMID 21088982. Bibcode: 2011JCAMD..25...51S.
↑ "Molecular interaction of serotonin 5-HT2A receptor residues Phe339(6.51) and Phe340(6.52) with superpotent N-benzyl phenethylamine agonists". Molecular Pharmacology 70 (6): 1956–64. December 2006. doi:10.1124/mol.106.028720. PMID 17000863.
↑ "Synthesis and structure-activity relationships of N-benzyl phenethylamines as 5-HT2A/2C agonists". ACS Chemical Neuroscience 5 (3): 243–9. March 2014. doi:10.1021/cn400216u. PMID 24397362.
↑ "2A receptor agonist identified in blotter paper seizures in Brazil". Forensic Toxicology 35 (2): 408–414. 2017. doi:10.1007/s11419-017-0357-x. PMID 28706567.
↑ "Preventing misidentification of 25I-NBOH as 2C-I on routine GC–MS analyses". Forensic Toxicology 35 (2): 415–420. 2017. doi:10.1007/s11419-017-0362-0. http://eprints.lincoln.ac.uk/26957/7/25i-nboh%20aceito.pdf.
↑ "Gemensamma författningssamlingen avseende hälso- och sjukvård, socialtjänst, läkeme del, folkhälsa m.m.". Lakemedelsverket. https://lakemedelsverket.se/upload/lvfs/HSLF_FS_2015_12.pdf.
↑ "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014" (in en). http://www.legislation.gov.uk/uksi/2014/1106/made.

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[1] "Radiosynthesis and in vivo evaluation of a series of substituted 11C-phenethylamines as 5-HT (2A) agonist PET tracers". European Journal of Nuclear Medicine and Molecular Imaging 38 (4): 681–93. April 2011. doi:10.1007/s00259-010-1686-8. PMID 21174090.

[pmid21088982-2] "Theoretical studies on the interaction of partial agonists with the 5-HT2A receptor". Journal of Computer-Aided Molecular Design 25 (1): 51–66. January 2011. doi:10.1007/s10822-010-9400-2. PMID 21088982. Bibcode: 2011JCAMD..25...51S.

[3] "Molecular interaction of serotonin 5-HT2A receptor residues Phe339(6.51) and Phe340(6.52) with superpotent N-benzyl phenethylamine agonists". Molecular Pharmacology 70 (6): 1956–64. December 2006. doi:10.1124/mol.106.028720. PMID 17000863.

[4] "Synthesis and structure-activity relationships of N-benzyl phenethylamines as 5-HT2A/2C agonists". ACS Chemical Neuroscience 5 (3): 243–9. March 2014. doi:10.1021/cn400216u. PMID 24397362.

[5] "2A receptor agonist identified in blotter paper seizures in Brazil". Forensic Toxicology 35 (2): 408–414. 2017. doi:10.1007/s11419-017-0357-x. PMID 28706567.

[6] "Preventing misidentification of 25I-NBOH as 2C-I on routine GC–MS analyses". Forensic Toxicology 35 (2): 415–420. 2017. doi:10.1007/s11419-017-0362-0. http://eprints.lincoln.ac.uk/26957/7/25i-nboh%20aceito.pdf.

[7] "Gemensamma författningssamlingen avseende hälso- och sjukvård, socialtjänst, läkeme del, folkhälsa m.m.". Lakemedelsverket. https://lakemedelsverket.se/upload/lvfs/HSLF_FS_2015_12.pdf.

[8] "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014" (in en). http://www.legislation.gov.uk/uksi/2014/1106/made.

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v t e Phenethylamines
Phenethylamines	Psychedelics: 25B-NBOMe 25C-NBOMe 25D-NBOMe 25I-NBOMe 25N-NBOMe 2C-B 2C-B-AN 2C-Bn 2C-Bu 2C-C 2C-CN 2C-CP 2C-D 2C-E 2C-EF 2C-F 2C-G 2C-G-1 2C-G-2 2C-G-3 2C-G-4 2C-G-5 2C-G-6 2C-G-N 2C-H 2C-I 2C-iP 2C-N 2C-NH2 2C-O 2C-O-4 2C-P 2C-Ph 2C-SE 2C-T 2C-T-2 2C-T-3 2C-T-4 2C-T-5 2C-T-6 2C-T-7 2C-T-8 2C-T-9 2C-T-10 2C-T-11 2C-T-12 2C-T-13 2C-T-14 2C-T-15 2C-T-16 2C-T-17 2C-T-18 2C-T-19 2C-T-20 2C-T-21 2C-T-22 2C-T-22.5 2C-T-23 2C-T-24 2C-T-25 2C-T-27 2C-T-28 2C-T-30 2C-T-31 2C-T-32 2C-T-33 2C-TFE 2C-TFM 2C-YN 2C-V Allylescaline DESOXY Escaline Isoproscaline Jimscaline Macromerine MEPEA Mescaline Metaescaline Methallylescaline Proscaline Psi-2C-T-4 TCB-2 Stimulants: Phenylethanolamine Hordenine Phenethylamine α-Methylphenethylamine (amphetamine) β-Methylphenethylamine m-Methylphenethylamine N-Methylphenethylamine o-Methylphenethylamine p-Methylphenethylamine Methylphenidate Entactogens: Lophophine MDPEA MDMPEA Others: BOH DMPEA
Amphetamines	Psychedelics: 3C-BZ 3C-E 3C-P Aleph Beatrice Bromo-DragonFLY D-Deprenyl DMA DMCPA DMMDA DOB DOC DOEF DOET DOI DOM DON DOPR DOTFM Ganesha MMDA MMDA-2 Psi-DOM TMA TeMA Stimulants: 2-FA 2-FMA 3-FA 3-FMA Acridorex Alfetamine Amfecloral Amfepentorex Amphetamine (Dextroamphetamine, Levoamphetamine) Amphetaminil Benfluorex Benzphetamine Cathine Clobenzorex Dimethylamphetamine Ephedrine Etilamfetamine Fencamfamin Fencamine Fenethylline Fenfluramine (Dexfenfluramine, Levofenfluramine) Fenproporex Flucetorex Fludorex Formetorex Furfenorex Gepefrine 4-Hydroxyamphetamine Iofetamine Isopropylamphetamine Lefetamine Lisdexamfetamine Mefenorex Metaraminol Methamphetamine (Dextromethamphetamine, Levomethamphetamine) Methoxyphenamine MMA Morforex Norfenfluramine L -Norpseudoephedrine N,alpha-Diethylphenylethylamine Oxifentorex Oxilofrine Ortetamine PBA PCA Phenpromethamine PFA PFMA PIA PMA PMEA PMMA Phenylpropanolamine Pholedrine Prenylamine Propylamphetamine Pseudoephedrine Sibutramine Tiflorex Tranylcypromine Xylopropamine Zylofuramine Entactogens: 4-FA 4-FMA 4-MA 4-MMA 4-MTA 5-APB 5-APDB 5-EAPB 5-IT 5-MAPB 5-MAPDB 6-APB 6-APDB 6-Chloro-MDMA 6-EAPB 6-IT 6-MAPB 6-MAPDB EDA IAP 2,3-MDA 3,4-MDA (tenamfetamine) MDEA MDHMA MDMA (midomafetamine) MDOH Methamnetamine MMDMA Naphthylaminopropane TAP Others: 3,4-DCA Amiflamine DiFMDA Selegiline (also D -Deprenyl)
Phentermines	Stimulants: Chlorphentermine Cloforex Clortermine Etolorex Mephentermine Pentorex Phentermine Entactogens: MDPH MDMPH Others: Cericlamine
Cathinones	Stimulants: 3-FMC 4-MC 4-BMC 4-CMC 4-EMC 4-FMC 4-MEC 4-MeMABP 4-MPD Amfepramone Benzedrone Brephedrone Buphedrone Bupropion Cathinone Dimethylcathinone Ethcathinone Eutylone Hydroxybupropion Methcathinone Methedrone NEB N-Ethylhexedrone N-Ethylpentedrone Pentedrone Pentylone Radafaxine Entactogens: 3,4-DMMC 3-MMC Butylone Ethylone Methylone Methylenedioxycathinone Mephedrone
Phenylisobutylamines	Entactogens: 4-CAB 4-MAB Ariadne BDB Butylone EBDB Eutylone MBDB Stimulants: Phenylisobutylamine
Phenylalkylpyrrolidines	Stimulants: α-PBP α-PHP α-PPP α-PVP MDPBP MDPPP MDPV 4-MePBP 4-MePHP 4-MePPP MOPPP MOPVP MPBP MPHP MPPP Naphyrone PEP Prolintane Pyrovalerone
Catecholamines (and close relatives)	6-FNE 6-OHDA a-Me-DA a-Me-TRA Adrenochrome Ciladopa D -DOPA (Dextrodopa) Dimetofrine Dopamine Epinephrine Epinine Etilefrine Ethylnorepinephrine Fenclonine Ibopamine Isoprenaline Isoetarine L -DOPA (Levodopa) L -DOPS (Droxidopa) L -Phenylalanine L -Tyrosine m-Tyramine Metanephrine Metaraminol Metaterol Metirosine Methyldopa N,N-Dimethyldopamine Nordefrin (Levonordefrin) Norepinephrine Norfenefrine (m-Octopamine) Normetanephrine Orciprenaline p-Octopamine p-Tyramine Phenylephrine Synephrine
Miscellaneous	AL-LAD Amidephrine Arbutamine Cafedrine Denopamine Desvenlafaxine Diphenidine Dizocilpine Dobutamine Dopexamine Ephenidine Etafedrine ETH-LAD Famprofazone Fluorolintane Hexapradol IP-LAD Lysergic acid amide Lysergic acid 2-butyl amide Lysergic acid 2,4-dimethylazetidide Lysergic acid diethylamide Methoxamine Methoxphenidine MT-45 PARGY-LAD Phenibut PRO-LAD Pronethalol Salbutamol (Levosalbutamol) Solriamfetol Theodrenaline Thiamphenicol UWA-101

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Legal status

Legal status	BR: F2 DE: NpSG (Industrial and scientific use only) UK: Class A
Identifiers
IUPAC name 2-((2-(4-Iodo-2,5-dimethoxyphenyl)ethylamino)methyl)phenol
CAS Number	919797-20-9^Y
PubChem CID	10001761
ChemSpider	8177342^Y
UNII	W9G4BGW8K4
Chemical and physical data
Formula	C₁₇H₂₀INO₃
Molar mass	413.255 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES Oc2ccccc2CNCCc(c(OC)cc1I)cc1OC
InChI InChI=1S/C17H20INO3/c1-21-16-10-14(18)17(22-2)9-12(16)7-8-19-11-13-5-3-4-6-15(13)20/h3-6,9-10,19-20H,7-8,11H2,1-2H3^Y Key:FEUZHYRXGQTBRO-UHFFFAOYSA-N^Y
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