What is 3,four-DMMC?3,four-DMMC, generally known as three,four-Dimethylmethcathinone, is a artificial stimulant belonging on the cathinone family. Cathinones are psychoactive substances that have effects similar to amphetamines, and 3,4-DMMC isn't any exception. It shares structural similarities with mephedrone (four-MMC), An additional perfectly-a