Synthetic cannabinoid (SCRA)
UnscheduledAM-905
(6aR,9R,10aR)-3-[(E)-hept-1-enyl]-9-(hydroxymethyl)-6,6-dimethyl-6a,7,8,9,10,10a-hexahydrobenzo[c]chromen-1-ol
Aliases.AM905 · AM 905
A laboratory synthetic cannabinoid, of high affinity for CB1, with no published human data whatsoever.
Updated on
Level of detail
Harm-reduction warning
No characterised human dose: animal / in vitro data only. Effect profile, safety margin and acute toxicity are not documented in human clinical practice. Extremely potent compound: severe effects, seizures and deaths reported in the literature.
Identifiers
- Formula
- C₂₃H₃₄O₃
- Molar mass
- 358.25 g·mol⁻¹
- CAS
- -
- PubChem CID
- 9998522
- First described
- Décrit en 1996 par Busch-Petersen, Hill, Fan, Khanolkar, Xie, Tius et Makriyannis dans le Journal of Medicinal Chemistry, au sein d'une série d'analogues du 11-hydroxy-hexahydrocannabinol dont la chaîne latérale porte une insaturation. Le sigle AM-905 renvoie à la numérotation interne du laboratoire de chimie médicinale d'Alexandros Makriyannis, la même série de codes que celle qui a donné les composés AM ultérieurs.
- Origin
- No natural origin: AM-905 occurs neither in hemp nor in any other organism. It is an entirely synthetic molecule, produced in laboratory quantities for a structure-activity relationship study and never intended for commercial use.
- InChIKey
- NJIKRWBGUIYKJM-OKMMTOMJSA-N
In plain terms
AM-905 is a laboratory molecule, made by chemists in 1996 to understand how cannabinoids bind to their receptors. It is not found in hemp and enters no product intended for the public. The only published measurements concern its binding to receptors in the test tube: nothing is known of what it does in human beings.
Receptors and activity
- CB1Ki = 1,2 nM (déplacement du [3H]CP-55940, J Med Chem 1996, 39, 3790)Agonist
- CB2Ki = 5,3 nM (déplacement du [3H]CP-55940, J Med Chem 1996, 39, 3790)Agonist
- Agonist
- Partial agonist
- Antagonist
- Modulator
- Inverse agonist
Hover over a row for the precise value (Ki, EC50…)
Subjective signature
Hover over an axis to read its definition.
- Calm5
- Clarity5
- Sleep5
- Appetite5
- High5
Editorial estimate, not clinical.
Pharmacology
AM-905 belongs to the family of classical cannabinoids: its dibenzopyran skeleton is that of hexahydrocannabinol, with a hydroxymethyl group at position 11 and a hept-1-enyl side chain of E configuration that locks rotation about the first bond of that chain. This conformational constraint was precisely the point of the molecule: the authors sought to map the orientation that the side chain must adopt in order to be recognised by the receptors. In displacement of [3H]CP-55940, AM-905 binds CB1 with a Ki of 1.2 nM and CB2 with a Ki of 5.3 nM, that is a nanomolar affinity together with a modest preference for CB1. The literature stops there: functional efficacy has not been published, no in vivo study exists, and human data are lacking, as are pharmacokinetic, metabolic and toxicological data. Unlike THC, a partial CB1 agonist, high-affinity synthetic cannabinoid agonists often behave as full agonists, which explains the severity of the poisonings described for those of them that have circulated; this observation holds for the class and has never been established for AM-905 itself.
Key sources.
- Busch-Petersen J, Hill WA, Fan P, Khanolkar A, Xie XQ, Tius MA, Makriyannis A. Unsaturated side chain beta-11-hydroxyhexahydrocannabinol analogs. J Med Chem. 1996;39(19):3790-6. Source primaire de la molécule et des affinités CB1 et CB2.PMID 8809166
- ChEMBL, fiche CHEMBL127848 (AM-905) : Ki CB1 de 1,2 nM et Ki CB2 de 5,3 nM par déplacement du [3H]CP-55940, données extraites de J Med Chem 1996;39:3790.
- PubChem, composé CID 9998522 (AM-905) : noms, synonymes et descripteurs structuraux.
- Papahatjis DP, Kourouli T, Abadji V, Goutopoulos A, Makriyannis A. Pharmacophoric requirements for cannabinoid side chains. J Med Chem. 1998;41(7):1195-200. Contexte sur la chaîne latérale, série delta-8-THC apparentée, ne porte pas sur AM-905.PMID 9544219
Origin (pharmaceutical research → illicit market)
No known biological pathway, the molecule being produced by no living being. It is obtained by total synthesis from a substituted resorcinol and a terpene synthon, with construction of the pyran ring followed by stereoselective introduction of the hydroxymethyl group at position 11 and installation of the unsaturated side chain of E configuration.
Legal framework
France
AM-905 is not listed by name on any French list of narcotics. The generic classification of annex IV of the decree of 22 February 1990 covers tetrahydrocannabinols as well as their esters, ethers and salts: AM-905 possesses a saturated ring of the hexahydrocannabinol type and a free alcohol function, so it does not obviously fall within that generic clause. The compound remains a research reagent with no commercial use, and the French framework applicable to hexahydrogenated cannabinoids has evolved through successive nominal additions, so this status may change.
European Union
No control measure at European Union level targets AM-905: the compound has been the subject of neither a risk assessment by the EUDA (formerly the EMCDDA) nor a decision to subject it to control, and it does not appear in the schedules of the international United Nations conventions. Several Member States nonetheless apply generic definitions covering cannabinoid structures of the dibenzopyran type, so that the situation may differ from one country to another.
Sources: EUR-Lex, UNODC, CND, ANSM, IUPHAR/BPS, ChEBI, EUDA. Our method.
Structural classification
- Class
- Synthetic cannabinoid (SCRA)
- Origin
- No natural origin: AM-905 occurs neither in hemp nor in any other organism. It is an entirely synthetic molecule, produced in laboratory quantities for a structure-activity relationship study and never intended for commercial use.
- Status
- Unscheduled
Cannabinoïde classique de type dibenzopyrane (benzo[c]chromène), plus précisément un analogue 11-hydroxylé de l'hexahydrocannabinol dont le cycle carboné est entièrement saturé. La particularité tient à la chaîne latérale hept-1-ényle de configuration E, dont la double liaison bloque la rotation autour de la première liaison de la chaîne.
Pharmacokinetics
Aucune donnée. Absorption, distribution, demi-vie et biodisponibilité n'ont été mesurées ni chez l'animal ni chez l'être humain, la molécule n'ayant servi qu'à des essais de liaison sur membranes.
Metabolism
Non étudié. La position 11 porte déjà une fonction alcool, ce qui distingue la molécule du THC, dont l'oxydation en 11-hydroxy puis en acide 11-nor-9-carboxylique constitue la voie principale. Aucune voie de biotransformation, aucun métabolite et aucune enzyme impliquée n'ont été décrits pour AM-905.
Toxicology and risks
Aucune étude de toxicité n'a été publiée sur AM-905 et aucun cas d'intoxication humaine ne lui est attribué. Le risque théorique tient à sa très forte affinité pour CB1 associée à l'absence totale de données in vivo. Les agonistes cannabinoïdes de synthèse qui ont réellement circulé sur le marché ont été associés à des convulsions, des tachyarythmies, des états d'agitation confuse, des vomissements incoercibles, des atteintes rénales aiguës et des décès : ces observations concernent d'autres composés de la classe et non AM-905, pour lequel rien n'a été vérifié.
Detection and analysis
Aucune méthode analytique ciblée n'est publiée et AM-905 n'apparaît pas dans les signalements de produits saisis. Les panels toxicologiques de routine ne le recherchent pas ; son identification supposerait une chromatographie couplée à la spectrométrie de masse haute résolution et la disponibilité d'un étalon de référence certifié.
References
- 1.Busch-Petersen J, Hill WA, Fan P, Khanolkar A, Xie XQ, Tius MA, Makriyannis A. Unsaturated side chain beta-11-hydroxyhexahydrocannabinol analogs. J Med Chem. 1996;39(19):3790-6. Source primaire de la molécule et des affinités CB1 et CB2.PMID 8809166
- 2.ChEMBL, fiche CHEMBL127848 (AM-905) : Ki CB1 de 1,2 nM et Ki CB2 de 5,3 nM par déplacement du [3H]CP-55940, données extraites de J Med Chem 1996;39:3790.
- 3.PubChem, composé CID 9998522 (AM-905) : noms, synonymes et descripteurs structuraux.
- 4.Papahatjis DP, Kourouli T, Abadji V, Goutopoulos A, Makriyannis A. Pharmacophoric requirements for cannabinoid side chains. J Med Chem. 1998;41(7):1195-200. Contexte sur la chaîne latérale, série delta-8-THC apparentée, ne porte pas sur AM-905.PMID 9544219
Structured data
- InChIKey
- NJIKRWBGUIYKJM-OKMMTOMJSA-N
- SMILES
- CCCCC/C=C/C1=CC2=C([C@@H]3C[C@@H](CC[C@H]3C(O2)(C)C)CO)C(=C1)O
- Formula
- C23H34O3
- Molar mass
- 358.25 g·mol⁻¹
- PubChem CID
- 9998522
LLM ingestion format: a structured superset of the entry (identifiers, binding, versioned legal status). Full corpus.