2-MMC, 3-CEC, and three-FMC are all synthetic stimulants from the cathinone family members, but they have unique chemical buildings, market place histories, and danger profiles.⚗️ two-MMC (two-Methylmethcathinone)two-MMC is a ring-substituted synthetic cathinone and a structural isomer of the more perfectly-identified three-MMC and four-MMC (me