4-Methylethcathinone is a chemical that bears a chemical resemblance to mephedrone. Due to its similarity to mephedrone, it is thought to be a stimulant and entactogen drug of the phenethylamine, amphetamine, and cathinone chemical classes. It has been marketed alone or in mixtures with other substituted cathinones under the name "NRG-2", although other blends such as "NRG-1" may have been more ambiguous with their ingredients. 4-MEC is a synthetic stimulant with empathogenic effects that is chemically similar to methcathinone. It became available online in 2010 and has been sold as replacement for 4-methylmethcathinone (mephedrone). It has an extremely short history of human use. It is most often found as a powder and has appeared in some samples of "NRG-2", although it has also been found in tablet form.
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