Exactly what is 3,4-DMMC?three,four-DMMC, generally known as 3,four-Dimethylmethcathinone, is often a synthetic stimulant belonging for the cathinone family members. Cathinones are psychoactive substances which have effects much like amphetamines, and three,4-DMMC isn't any exception. It shares structural similarities with mephedrone (four-MMC), On