What on earth is 3,4-DMMC?three,four-DMMC, also called three,4-Dimethylmethcathinone, is usually a synthetic stimulant belonging to the cathinone household. Cathinones are psychoactive substances which have outcomes comparable to amphetamines, and three,four-DMMC isn't any exception. It shares structural similarities with mephedrone (four-MMC), ano