RCS-4

RCS-4

RCS-4

Chemical compound

"NRG-4" redirects here. For the protein growth factor, see Neuregulin 4.

RCS-4, or 1-pentyl-3-(4-methoxybenzoyl)indole, is a synthetic cannabinoid drug sold under the names SR-19, BTM-4, or Eric-4 (later shortened to E-4), but originally, OBT-199.

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Pharmacology

RCS-4 is a potent cannabinoid receptor agonist, with EC50 values of 146 nM for human CB1 receptors, and 46 nM for human CB2 receptors.[2] All methoxyphenyl regioisomers, and N-butyl homologues of RCS-4 and its regioisomers also display potent agonist activities at CB1 and CB2 receptors.[2]

Legality

RCS-4 was banned in Sweden on 1 October 2010 as a hazardous good harmful to health, after being identified as an ingredient in "herbal" synthetic cannabis products.[3][4]

It was outlawed in Denmark on 11 March 2011.[5]

In August 2011, New Zealand added not only RCS-4 but also its 1-butyl homologue, and the 2-methoxybenzoyl isomers of both these compounds, to a temporary class drug schedule (i.e. equivalent to Class C but reviewed after 12 months, and with personal possession and use of small amounts decriminalised), which was newly created under the Misuse of Drugs Amendment Act 2011 passed a week earlier.[6][7][8]

As of October 2015 RCS-4 is a controlled substance in China.[9]

RCS-4 and related analogues detected in synthetic cannabis blends

See also

References

  1. [1]
    "Ustawa z dnia 15 kwietnia 2011 r. o zmianie ustawy o przeciwdziałaniu narkomanii ( Dz.U. 2011 nr 105 poz. 614 )". Internetowy System Aktów Prawnych. Retrieved 12 June 2011.
  2. [2]
    Banister SD, Stuart J, Conroy T, Longworth M, Manohar M, Beinat C, et al. (2015). "Structure–activity relationships of synthetic cannabinoid designer drug RCS-4 and its regioisomers and C4 homologues". Forensic Toxicology. 33 (2): 355–366. doi:10.1007/s11419-015-0282-9. S2CID 33994750.
  3. [3]
    Swedish Code of Statutes Regulation (2010:1086).
  4. [4]
    Swedish Code of Statutes Regulation (2010:1086). (pdf) Archived 2011-07-28 at the Wayback Machine
  5. [5]
    "Bilag 1 - Liste over euforiserende midler omfattet af bekendtgørelsen". Ministeriet for Sundhed og Forebyggelse. Archived from the original on 4 March 2016.
  6. [6]
    "Kronic ban passed by Parliament". The New Zealand Herald. NZPA. 4 August 2011. Retrieved 4 November 2011.
  7. [7]
    "Synthetic cannabis off shelves by Wednesday". The New Zealand Herald. NZPA. 9 August 2011. Retrieved 4 November 2011.
  8. [8]
    New Zealand Gazette. Tuesday 9 August 2011. Issue No 122, pp 3365-3366. Departmental Notices. Health. Misuse of Drugs Act 1975. Temporary Class Drug Notice.
  9. [9]
    "关于印发《非药用类麻醉药品和精神药品列管办法》的通知" (in Chinese). China Food and Drug Administration. 27 September 2015. Retrieved 1 October 2015.
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