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Cp 47,497

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Cp 47,497

CP 47,497
Systematic (IUPAC) name
2-[(1R,3S)-3-hydroxycyclohexyl]- 5-(2-methyloctan-2-yl)phenol
Clinical data
Legal status
CAS Registry Number
70434-92-3 (C8 homologue)
PubChem CID:
Chemical data
Formula C21H34O2
Molecular mass 318.492 g/mol

CP 47,497 or (C7)-CP 47,497 is a cannabinoid receptor agonist drug, developed by Pfizer in the 1980s.[1] It has analgesic effects and is used in scientific research. It is a potent CB1 agonist with a Kd of 2.1nM.[2][3][4]


On the 19th of January 2009, the University of Freiburg in Germany announced that an analog of CP 47,497 is the main active ingredient in the herbal "incense" product Spice, specifically the 1,1-dimethyloctyl homologue of CP 47,497. Both the dimethylheptyl and dimethyloctyl homologues were detected in different batches, with considerable variation in the concentration present in different samples that were analysed. The weaker dimethylhexyl and dimethylnonyl homologues were not found in any batches of smoking blends tested, but have been legally scheduled alongside the others in some jurisdictions, to forestall any potential use for this purpose.[5][6][7] The 1,1-dimethyloctyl homologue of CP 47,497 is in fact several times more potent than the parent compound,[8] which is somewhat unexpected as the 1,1-dimethylheptyl is the most potent substituent in classical cannabinoid compounds such as HU-210.[9] The unapproved use of these compounds in herbal smoking blends has led to a resurgence in legitimate scientific research into their use,[10] and consequently the C8 homologue of CP 47,497 has been assigned a proper name, cannabicyclohexanol.[11]


Legal status


On 22 January 2009, CP 47,497 was added to the German controlled drug schedules ("Betäubungsmittelgesetz"),[12] along with its dimethylhexyl, dimethyloctyl and dimethylnonyl homologues.[13]


CP 47,497 and its C6, C8, and C9 homologues were made illegal in France on 24 February 2009.[14]


CP 47,497 and its C6, C8, and C9 homologues were made illegal in Latvia on 28 November 2009.[15]


CP 47,497 and its C6, C8, and C9 homologues were made illegal in Lithuania on 5 June 2009.[16]


CP 47,497 and its C6, C7, C8, and C9 homologues were made illegal in Sweden on 15 September 2009.


CP 47,497 and its C6, C7, C8, and C9 homologues were made illegal in Romania on 15 February 2010.(Illegal Substances in Romania after 15.02.2010

United States

As of March 1, 2011, it is a schedule 1 drug.[17][18]

See also


  1. ^ Weissman A, Milne GM, Melvin LS Jr. Cannabimimetic activity from CP-47,497, a derivative of 3-phenylcyclohexanol. Journal of Pharmacology and Experimental Therapeutics. 1982 Nov;223(2):516-23. PMID 6290642
  2. ^ Shim JY, Welsh WJ, Howlett AC. Homology model of the CB1 cannabinoid receptor: sites critical for nonclassical cannabinoid agonist interaction. Biopolymers. 2003;71(2):169-89. PMID 12767117
  3. ^ Roger Pertwee. Cannabinoids. Handbook of Experimental Pharmacology Volume 168. Springer. ISBN 3-540-22565-X
  4. ^ Little PJ, et al. Pharmacology and stereoselectivity of structurally novel cannabinoids in mice. Journal of Pharmacology and Experimental Therapeutics 1988; 247:1046–1051.
  5. ^ Hauptwirkstoff von „Spice“ identifiziert, University of Freiburg
  6. ^ Spice - weitere Analyseresultate
  7. ^ Auwärter V, et al. 'Spice' and other herbal blends: harmless incense or cannabinoid designer drugs? Journal of Mass Spectrometry. 2009 Feb 2. PMID 19189348
  8. ^ Compton DR, Johnson MR, Melvin LS, Martin BR. Pharmacological profile of a series of bicyclic cannabinoid analogs: classification as cannabimimetic agents. Journal of Pharmacology and Experimental Therapeutics. 1992 Jan;260(1):201-9. PMID 1309872
  9. ^ Martin BR, et al. Behavioral, biochemical, and molecular modeling evaluations of cannabinoid analogs. Pharmacology, Biochemistry and Behavior. 1991 Nov;40(3):471-8. PMID 1666911
  10. ^ Uchiyama N, et al. Effects of synthetic cannabinoids on electroencephalogram power spectra in rats. Forensic Science International. 2011 Jun 1. PMID 21640532
  11. ^
  12. ^ Modedroge "Spice" ist verboten!
  13. ^ BGBl I Nr. 3 vom 21.01.2009, 22. BtMÄndV vom 19. Januar 2009, S. 49–50.
  14. ^ Décrets, arrêtés, circulaires: Arrêté du 24 février 2009 modifiant l’arrêté du 22 février 1990 fixant la liste des substances classées comme stupéfiants
  15. ^ Grozījumi Ministru kabineta 2005.gada 8.novembra noteikumos Nr.847 "Noteikumi par Latvijā kontrolējamajām narkotiskajām vielām, psihotropajām vielām un prekursoriem"
  16. ^
  17. ^
  18. ^
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