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Systematic (IUPAC) name
Clinical data
Legal status
CAS Number 1225843-86-6
PubChem CID: 82100418
ChemSpider 25630416
Chemical data
Formula C10H12ClNO
Molecular mass 197.66 g/mol

4-Chloromethcathinone (also known as 4-CMC and Clephedrone) is a stimulant drug of the cathinone class that has been sold online as a designer drug.[1][2][3]


Clephedrone is an Anlage I controlled drug in Germany.

Sweden's public health agency suggested classifying 4-Chloromethcathinone (klefedron) as illegal narcotic on June 1, 2015.[4]

As of October 2015 4-CMC is a controlled substance in China.[5]

4-CMC is considered a Schedule 1 substance in Virginia.[6]

See also


  1. "4-Chloromethcathinone". Cayman Chemical. Retrieved 5 September 2015. 
  2. Magdalena Taschwer; Jennifer A. Weiß; Olaf Kunert; Martin G. Schmid (November 2014). "Analysis and characterization of the novel psychoactive drug 4-chloromethcathinone (clephedrone)". Forensic Science International. 244: 56–59. PMID 25280452. doi:10.1016/j.forsciint.2014.09.007. 
  3. Janez Klavž; Maksimiljan Gorenjak; Martin Marinšek (August 2016). "Suicide attempt with a mix of synthetic cannabinoids and synthetic cathinones: Case report of non-fatal intoxication with AB-CHMINACA, AB-FUBINACA, alpha-PHP, alpha-PVP and 4-CMC". Forensic Science International. 265: 121–124. doi:10.1016/j.forsciint.2016.01.018. 
  4. "23 nya ämnen kan klassas som narkotika eller hälsofarlig vara" (in Swedish). Folkhälsomyndigheten. 1 June 2015. Retrieved 5 September 2015. 
  5. "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. 
  6. "18VAC110-20-322. Placement of Chemicals in Schedule I.". Commonwealth of Virginia. 2 December 2015. Retrieved 11 March 2016.