Exactly what is three,four-DMMC?three,4-DMMC, also called three,four-Dimethylmethcathinone, is really a synthetic stimulant belonging to your cathinone spouse and children. Cathinones are psychoactive substances that have results just like amphetamines, and three,four-DMMC is no exception. It shares structural similarities with mephedrone (four-MMC