What on earth is three,four-DMMC?three,four-DMMC, generally known as 3,four-Dimethylmethcathinone, is usually a synthetic stimulant belonging on the cathinone family members. Cathinones are psychoactive substances that have effects similar to amphetamines, and 3,four-DMMC isn't any exception. It shares structural similarities with mephedrone (four-