Methylone (also known as "3,4-methylenedioxy-N-methylcathinone", "MDMC", "βk-" and by the slang term "M1") is an empathogen and stimulant psychoactive drug. It is a member of the substituted amphetamine, substituted cathinone andsubstituted methylenedioxyphenethylamine classes.
Methylone is the substituted cathinone analog of and the 3,4-methylenedioxy analog of methcathinone. The only structural difference of methylone with respect to is the substitution of 2 hydrogen atoms by 1 oxygen atom in the β position of the phenethylamine core, forming a ketone group.
Methylone was first synthesized by the chemists Peyton Jacob III and Alexander Shulgin in 1996 for potential use as an antidepressant. Starting around 2004, methylone has been sold for recreational use, taking advantage of the absence of legal prohibition of this compound in many countries.