3-CMC (3-Chloromethcathinone), often referred to as “Clopedrone,” is a synthetic stimulant of the cathinone class. In its crystal form, it typically appears as large, transparent, or white “shards” and has gained significant traction on the European and global market as a replacement for its now-banned predecessor, 3-MMC.

Chemical Profile & Effects

3-CMC is a structural analog of both 3-MMC and 4-MMC (Mephedrone). It primarily functions as a releasing agent for dopamine and serotonin, though its chemical makeup differs by the addition of a chlorine atom.

• Subjective Effects: Users report a mix of stimulation and mild “empathogenic” effects (increased sociability and warmth), though it is widely considered less euphoric and more “jittery” than 3-MMC.

• Duration: The “rush” is relatively short, usually lasting 1 to 2 hours, followed by several hours of residual stimulation and inability to sleep.

• Potency: It is generally considered weaker than 3-MMC by weight, which often leads users to take larger doses—a practice that significantly increases the risk of toxicity.