What exactly is 3,4-DMMC?three,4-DMMC, also known as three,4-Dimethylmethcathinone, can be a synthetic stimulant belonging on the cathinone family. 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), Yet another perfectly-