What is 3,4-DMMC?three,4-DMMC, also called 3,4-Dimethylmethcathinone, is often a synthetic stimulant belonging into the cathinone loved ones. Cathinones are psychoactive substances which have effects similar to amphetamines, and 3,4-DMMC isn't any exception. It shares structural similarities with mephedrone (four-MMC), another properly-recognized s