3,4-methylenedioxy-n-methoxyamphetamine 3,4-methylenedioxy-n-methoxyamphetamine 3,4-methylenedioxy-n-methoxyamphetamine (mdmeo, mdmeoa, or mdmeoa) is a lesser-known psychedelic drug and a substituted amphetamine. it is also the n-methoxy analogue of mda. mdmeo was first synthesized by alexander shulgin. in his book pihkal (phenethylamines i have known and loved), the minimum dosage is listed as 180 mg. mdmeo may be found as white crystals. it produces few to no effects. very little data exists about the pharmacological properties, metabolism, and toxicity of mdmeo. 3,4-methylenedioxy-n-methoxyamphetamine names preferred iupac name 1-(2h-1,3-benzodioxol-5-yl)-n-methoxypropan-2-amine identifiers cas number 74698-48-9 y 3d model (jsmol) interactive image chemspider 21106333 y pubchem cid 44719583 unii 2n67z48j84 y comptox dashboard (epa) dtxsid50660370 inchi inchi=1s/c11h15no3/c1-8(12-13-2)5-9-3-4-10-11(6-9)15-7-14-10/h3-4,6,8,12h,5,7h2,1-2h3 ykey: mtikjujmcmdsgm-uhfffaoysa-n yinchi=1/c11h15no3/c1-8(12-13-2)5-9-3-4-10-11(6-9)15-7-14-10/h3-4,6,8,12h,5,7h2,1-2h3key: mtikjujmcmdsgm-uhfffaoyav smiles cc(noc)cc1ccc2ococ2c1 properties chemical formula c11h15no3 molar mass 209.245 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). y verify (what is yn ?) infobox references legality united kingdom this substance is a class a drug in the drugs controlled by the uk misuse of drugs act.