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AH-7921 structure.png
Systematic (IUPAC) name
Clinical data
Legal status ?
CAS number 55154-30-8 N
ATC code None
PubChem CID 187760
ChemSpider 163208 YesY
Synonyms AH-7921
Chemical data
Formula C16H22Cl2N2O 
Mol. mass 329.265 g/mol
 N (what is this?)  (verify)

AH-7921 is an opioid analgesic drug selective for the µ-opioid receptor, having around 80% the potency of morphine when administered orally.[1][2] It was discovered in the 1970s[3] by a team at Allen and Hanburys.

Dosages have been reported to range from as little as 10 mg to around 200 mg or higher (for opioid-tolerant individuals). This would confirm the previous studies of AH-7921 being roughly 80% as potent as morphine.[citation needed]


A trivial name(s) doxylam has been proposed for this compound, but it has never been never sold commercially for medical use. In 2013 AH-7921 was discovered to have been used as an active ingredient in "synthetic cannabis" products in Japan.[4]

See also[edit]


  1. ^ Brittain, R. T.; Kellett, D. N.; Neat, M. L.; Stables, R. (1973). "Proceedings: Anti-nociceptive effects in N-substituted cyclohexylmethylbenzamides". British Journal of Pharmacology 49 (1): 158P–159P. PMC 1776456. PMID 4207044.  edit
  2. ^ Hayes, A. G.; Tyers, M. B. (1983). "Determination of receptors that mediate opiate side effects in the mouse". British Journal of Pharmacology 79 (3): 731–736. PMC 2044905. PMID 6317119.  edit
  3. ^ US patent 3975443, Harper, N.; Veitch, G., "1-(3,4-DICHLOROBENZAMIDOMETHYL)-CYCLOHEXYLDIMETHYLAMINE", issued 1976-08-17, assigned to Allen & Hanburys 
  4. ^ Uchiyama, N.; Matsuda, S.; Kawamura, M.; Kikura-Hanajiri, R.; Goda, Y. (2013). "Two new-type cannabimimetic quinolinyl carboxylates, QUPIC and QUCHIC, two new cannabimimetic carboxamide derivatives, ADB-FUBINACA and ADBICA, and five synthetic cannabinoids detected with a thiophene derivative α-PVT and an opioid receptor agonist AH-7921 identified in illegal products". Forensic Toxicology. doi:10.1007/s11419-013-0182-9.  edit