3,4-methylenedioxy-n-propargylamphetamine 3,4-methylenedioxy-n-propargylamphetamine 3,4-methylenedioxy-n-propargylamphetamine (mdpl) is a lesser-known psychedelic drug and a substituted amphetamine. mdpl was first synthesized by alexander shulgin. in his book pihkal (phenethylamines i have known and loved), the minimum dosage is listed as 150 mg, and the duration unknown. mdpl causes few to no effects. very little data exists about the pharmacological properties, metabolism, and toxicity of mdpl. 3,4-methylenedioxy-n-propargylamphetamine names preferred iupac name n-prop-2-yn-1-amine identifiers cas number 74698-46-7 3d model (jsmol) interactive image chemspider 21106336 pubchem cid 44719587 unii tk2wh78t88 comptox dashboard (epa) dtxsid70660372 inchi inchi=1s/c13h15no2/c1-3-6-14-10(2)7-11-4-5-12-13(8-11)16-9-15-12/h1,4-5,8,10,14h,6-7,9h2,2h3key: lryutpibtledjj-uhfffaoysa-n smiles cc(ncc#c)cc1ccc2ococ2c1 properties chemical formula c13h15no2 molar mass 217.268 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references legality united kingdom this substance is a class a drug in the drugs controlled by the uk misuse of drugs act.