3-Chloromethcathinone (also known as 3-CMC and clophedrone) is a stimulant drug of the cathinone class that has been sold online as a designer drug, mainly in European countries such as Sweden, Italy and Poland. It is closely related in chemical structure to the antidepressant and anti-addictive medication bupropion, which is 3-chloro-N-(t-butyl)cathinone, though the pharmacological profile of 3-CMC is quite different.