What's three,4-DMMC?three,4-DMMC, often called 3,four-Dimethylmethcathinone, is a synthetic stimulant belonging on the cathinone family members. Cathinones are psychoactive substances which have results just like amphetamines, and three,four-DMMC is no exception. It shares structural similarities with mephedrone (4-MMC), An additional properly-know