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Systematic (IUPAC) name
Clinical data
Legal status
CAS Number 86052-04-2
PubChem CID 62296
DrugBank DB01439 YesY
ChemSpider 56092 YesY
ChEBI CHEBI:53763 YesY
Synonyms N-[3-methyl-1-(2-thiophen-2-ylethyl)-4-piperidyl]-N-phenyl-propanamide; 3-methyl-thiofentanyl
Chemical data
Formula C21H28N2OS
Molar mass 356.526 g/mol

3-Methyl-thiofentanyl is an opioid analgesic and analogue of fentanyl.

3-Methyl-thiofentanyl was sold briefly on the black market in the early 1980s, before the introduction of the Federal Analog Act which for the first time attempted to control entire families of drugs based on their structural similarity rather than scheduling each drug individually as they appeared.[1]

3-Methyl-thiofentanyl has similar effects to fentanyl. Side effects of fentanyl analogs are similar to those of fentanyl itself, which include itching, nausea and potentially serious respiratory depression, which can be life-threatening. Fentanyl analogs have killed hundreds of people throughout Europe and the former Soviet republics since the most recent resurgence in use began in Estonia in the early 2000s, and novel derivatives continue to appear.[2]

See also[edit]


  1. ^ Henderson, GL (1988). "Designer Drugs: Past History and Future Prospects". Journal of Forensic Sciences 33 (2): 569–575. 
  2. ^ Jane Mounteney, Isabelle Giraudon, Gleb Denissov, Paul Griffiths (July 2015). "Fentanyls: Are we missing the signs? Highly potent and on the rise in Europe.". The international journal of drug policy. 26 (7): 626–631. doi:10.1016/j.drugpo.2015.04.003. PMID 25976511. 
  3. ^ Mićović, I. V.; Ivanović, M. D.; Vuckovic, S. M.; Prostran, M. Š.; Došen-Mićović, L.; Kiricojević, V. D. (2000). "The Synthesis and preliminary pharmacological evaluation of 4-Methyl fentanyl". Bioorganic & Medicinal Chemistry Letters 10 (17): 2011–2014. doi:10.1016/S0960-894X(00)00394-2.