methylenedioxyallylamphetamine methylenedioxyallylamphetamine methylenedioxyallylamphetamine (mdal or 3,4-methylenedioxy-n-allylamphetamine) is a lesser-known psychedelic drug. it is also the n-allyl derivative of 3,4-methylenedioxyamphetamine (mda). mdal was first synthesized by alexander shulgin. in his book pihkal, the minimum dosage is listed as 180 mg, and the duration unknown. mdal produces few to no effects on its own, but may enhance the effects of lsd. very little data exists about the pharmacological properties, metabolism, and toxicity of mdal. methylenedioxyallylamphetamine names preferred iupac name n-prop-2-en-1-amine identifiers cas number 74698-45-6 y 3d model (jsmol) interactive image chemspider 21106331 n pubchem cid 44719581 unii hyc85u2r8z y comptox dashboard (epa) dtxsid40660369 inchi inchi=1s/c13h17no2/c1-3-6-14-10(2)7-11-4-5-12-13(8-11)16-9-15-12/h3-5,8,10,14h,1,6-7,9h2,2h3 nkey: bmkcddfqegyejc-uhfffaoysa-n ninchi=1/c13h17no2/c1-3-6-14-10(2)7-11-4-5-12-13(8-11)16-9-15-12/h3-5,8,10,14h,1,6-7,9h2,2h3key: bmkcddfqegyejc-uhfffaoyao smiles c1=c2c(=cc=c1cc(c)ncc=c)oco2 properties chemical formula c13h17no2 molar mass 219.284 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). n 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.