Clinical data
ATC code none
Legal status
Legal status
Synonyms Dimenoxadol, Estocin
CAS Number 509-78-4 YesY
PubChem (CID) 17036
DrugBank DB01461 YesY
ChemSpider 16137 YesY
Chemical and physical data
Formula C20H25NO3
Molar mass 327.42 g/mol
3D model (Jmol) Interactive image

Dimenoxadol (INN) (brand name Estocin (in Russia)), or dimenoxadole (BAN), is an opioid analgesic which is a benzilic acid derivative, closely related to benactyzine (an anticholinergic). Further, the structure is similar to methadone and related compounds like dextropropoxyphene.

It was invented in Germany in the 1950s,[1] and produces similar effects to other opioids, including analgesia, sedation, dizziness and nausea.[2][3][4]

In the United States it is a Schedule I Narcotic controlled substance with an ACSCN of 9617 and a 2013 annual aggregrate manufacturing quota of zero.


  1. GB 716700, Boehringer, A et al., "A new and improved analgesic and process for its production", published 10/13/1954
  2. Gorbatova, E. N. (1967). "The pharmacology of estocin, an new analgesic". Stomatologiia. 46 (2): 22–25. PMID 5232927.
  3. Kingisepp, G. A.; Kurvits, K.; Nurmand, L. B. (1969). "Pharmacology of dimethylaminoethyl ester of diphenylethoxyacetic acid hydrochloride--estocin". Farmakologiia i toksikologiia. 32 (6): 710–712. PMID 5381602.
  4. Liberman, S. S. (1968). "Analgesic action of estocin (dimethylaminoethyl ester hydrochloride of alpha, alpha-diphenylethoxyacetic acid)". Farmakologiia i toksikologiia. 31 (6): 668–671. PMID 5729519.

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