Ball-and-stick model of the flephedrone molecule
Clinical data
Routes of
Legal status
Legal status
CAS Number 447-40-5 N
HCl: 7589-35-7
PubChem (CID) 49853406
ChemSpider 21477355 YesY
ECHA InfoCard 100.231.256
Chemical and physical data
Formula C10H12FNO
Molar mass 181.206 g/mol
3D model (Jmol) Interactive image
Chirality Racemic mixture
 NYesY (what is this?)  (verify)

Flephedrone, also known as 4-fluoromethcathinone (4-FMC), is a stimulant drug of the cathinone chemical class that has been sold online as a designer drug starting in 2008.[2]


Flephedrone has only a short history of human use and its toxicity is not well established.[3]


Flephedrone has been illegal in Denmark since December 2008.

Flephedrone has been illegal in the UK since April 2010.

Flephedrone has been illegal in the Lithuania since April 2010.

Flephedrone is most likely illegal in Australia as an analogue or derivative of cathinone.

Flephedrone has been illegal in Poland since April 2010.[4]

Flephedrone has been classed as a narcotic in Sweden since October 2010.[5]

In the United States, flephedrone is temporarily listed as a Schedule I controlled substance.[1] It is permanently listed as a Schedule I controlled substance in Florida,[6] Georgia, and Pennsylvania.[7]

As of October 2015 4-FMC is a controlled substance in China.[8]

See also


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