What on earth is 3,four-DMMC?3,four-DMMC, also referred to as three,4-Dimethylmethcathinone, can be a synthetic stimulant belonging on the cathinone spouse and children. Cathinones are psychoactive substances that have consequences similar to amphetamines, and three,four-DMMC isn't any exception. It shares structural similarities with mephedrone (4