3,4-dimethylmethcathinone 3,4-dimethylmethcathinone 3,4-dimethylmethcathinone (3,4-dmmc) is a stimulant drug first reported in 2010 as a designer drug analogue of mephedrone, apparently produced in response to the banning of mephedrone, following its widespread abuse in many countries in europe and around the world. 3,4-dmmc has been seized as a designer drug in australia. in vitro, 3,4-dmmc was shown to be a monoamine transporter substrate that potently inhibits norepinephrine and serotonin reuptake, and to a lesser extent dopamine reuptake. 3,4-dimethylmethcathinoneclinical dataatc codenonelegal statuslegal status de: anlage ii (authorized trade only, not prescriptible) uk: class b identifiers iupac name (±)-1-(3,4-dimethylphenyl)-2-(methylamino)propan-1-one cas number1082110-00-6 npubchem cid52988261chemspider25630192 yuniic4ew58dtw5chemical and physical dataformulac12h17nomolar mass191.274 g·mol−13d model (jsmol)interactive image smiles cc1ccc(c(=o)c(c)nc)cc1c inchi inchi=1s/c12h17no/c1-8-5-6-11(7-9(8)2)12(14)10(3)13-4/h5-7,10,13h,1-4h3 ykey:ibzrxtvdtgvbis-uhfffaoysa-n y ny (what is this?) (verify) legal status as of october 2015 3,4-dmmc is a controlled substance in china. 3,4-dmmc is banned in the czech republic. in the united states 3,4-dmmc is considered a schedule 1 controlled substance as a positional isomer of 4-methylethcathinone (4-mec)