dimethylone dimethylone dimethylone (βk-mddma) is a substituted cathinone derivative with stimulant and empathogenic effects. unlike the corresponding amphetamine derivative mddm which is thought to be practically inactive, dimethylone substitutes for methamphetamine and mdma in animal studies and has been sold as a designer drug. dimethyloneclinical dataatc codenonelegal statuslegal status ca: schedule i de: npsg (industrial and scientific use only) uk: under psychoactive substances act identifiers iupac name 1-(1,3-benzodioxol-5-yl)-2-(dimethylamino)propan-1-one cas number765231-58-1 y 109367-07-9 (hcl)pubchem cid9794472chemspider7970239unii4g26nsp297chemical and physical dataformulac12h15no3molar mass221.256 g·mol−13d model (jsmol)interactive image smiles cc(c(=o)c1=cc2=c(c=c1)oco2)n(c)c inchi inchi=1s/c12h15no3/c1-8(13(2)3)12(14)9-4-5-10-11(6-9)16-7-15-10/h4-6,8h,7h2,1-3h3key:osniimcbvlbngs-uhfffaoysa-n legality in the united states dimethylone is considered a schedule 1 controlled substance as a positional isomer of butylone