Clinical data
Routes of
Legal status
Legal status
  • CA: Schedule III controlled substance
  • Illegal in Sweden and Switzerland
CAS Number 807631-09-0
PubChem (CID) 11288812
ChemSpider 9463799
UNII W6KJ195I24 YesY
Chemical and physical data
Formula C10H12BrNO3
Molar mass 274.111 g/mol (freebase)
310.572 g/mol (HCl salt)
3D model (Jmol) Interactive image

βk-2C-B (beta-keto 2C-B, bk-2C-B) is a psychedelic drug which is structurally related to 2C-B and BOB[1] and has been sold online as a designer drug.[2][3]


On 12 October 2016, βk-2C-B will become a controlled substance (Schedule III) in Canada.[4]


βk-2C-B is illegal in Switzerland,[5] Sweden[6] and the United Kingdom[7]

See also


  1. Richard A. Glennon; Mikhail L. Bondarev; Nantaka Khorana; Richard Young; Jesse A. May; Mark R. Hellberg; Marsha A. McLaughlin; Najam A. Sharif (November 2004). "β-Oxygenated Analogues of the 5-HT2A Serotonin Receptor Agonist 1-(4-Bromo-2,5-dimethoxyphenyl)-2-aminopropane". Journal of Medicinal Chemistry. 47 (24): 6034–6041. doi:10.1021/jm040082s. PMID 15537358.
  2. John D. Power; Pierce Kavanagh; John O'Brien; Michael Barry; Brendan Twamley; Brian Talbot; Geraldine Dowling; Simon D. Brandt (June 2015). "Test purchase, identification and synthesis of 2-amino-1-(4-bromo-2, 5-dimethoxyphenyl)ethan-1-one (bk-2C-B)". Drug Testing and Analysis. 7 (6): 512–518. doi:10.1002/dta.1699. PMID 25078895.
  3. Giampietro Frison; Sara Odoardi; Samuela Frasson; Rocco Sciarrone; Giorgio Ortar; Francesco Saverio Romolo; Sabina Strano Rossi (July 2015). "Characterization of the designer drug bk-2C-B (2-amino-1-(bromo-dimethoxyphenyl)ethan-1-one) by gas chromatography/mass spectrometry without and with derivatization with 2,2,2-trichloroethyl chloroformate, liquid chromatography/high-resolution mass spectrometry, and nuclear magnetic resonance". Rapid Communications in Mass Spectrometry. 29 (13): 1196–1204. doi:10.1002/rcm.7211. PMID 26395784.
  4. "Regulations Amending the Food and Drug Regulations (Part J — 2C-phenethylamines)". Controlled Substances Act.
  5. "Verordnung des EDI über die Verzeichnisse der Betäubungsmittel, psychotropen Stoffe, Vorläuferstoffe und Hilfschemikalien" (in German). Der Bundesrat.
  6. "Nya substanser klassas som narkotika eller hälsofarlig vara" (in Swedish). Folkhälsomyndigheten. 18 August 2015.
  7. "Psychoactive Substances Act 2016". Home Office. Retrieved 8 September 2016.

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