4 mec . Features This product has been formulated as an exempt preparation which meets criteria established by the US DEA Possession of a DEA Controlled Substance registration is not necessary nor is a DEA 222 form required to purchase this product This product is intended to be used as an analytical reference standard Bulk material is available for academic research at qualified institutions; please contact our sales department for pricing. Synonyms 4-methyl-N-ethyl Cathinone 4-MEC 4-Methylethcathinone is a cathinone derivative identified in several designer, . recreational drugs that are sold as ?legal high? replacements for controlled stimulants such as methamphetamine and 3,4-methylenedioxymethamphetamine. The hydrochloride formulation of this compound is intended for use as a standard for the forensic analysis of samples that may contain 4-Methylethcathinone.