What on earth is three,four-DMMC?three,four-DMMC, generally known as 3,4-Dimethylmethcathinone, is usually a synthetic stimulant belonging into the cathinone loved ones. Cathinones are psychoactive substances which have effects much like amphetamines, and three,4-DMMC is not any exception. It shares structural similarities with mephedrone (4-MMC),