3,4-methylenedioxyphentermine 3,4-methylenedioxyphentermine 3,4-methylenedioxyphentermine (mdph) is a lesser-known psychedelic drug. mdph was first synthesized by alexander shulgin. in his book pihkal (phenethylamines i have known and loved), the dosage range is listed as 160–240 mg, and the duration as 3–5 hours. mdph's effects are very similar to those of mda: they both are smooth and "stoning," and do not cause any visuals. they also alter dreams and dream patterns. shulgin describes mdph as a promoter; it promotes the effects of other drugs, similarly to 2c-d. very little data exists about the pharmacological properties, metabolism, and toxicity of mdph. 3,4-methylenedioxyphentermine names preferred iupac name 1-(2h-1,3-benzodioxol-5-yl)-2-methylpropan-2-amine other names 3,4-methylenedioxyphentermine;3,4-methylenedioxy-alpha,alpha-dimethyl-1-ethane identifiers cas number 39235-63-7 y 3d model (jsmol) interactive image chembl chembl126226 chemspider 15204207 y pubchem cid 13020598 unii wf9k2pm8j8 comptox dashboard (epa) dtxsid90515395 inchi inchi=1s/c11h15no2/c1-11(2,12)6-8-3-4-9-10(5-8)14-7-13-9/h3-5h,6-7,12h2,1-2h3 nkey: oizbhkbnzxrxsm-uhfffaoysa-n ninchi=1/c11h15no2/c1-11(2,12)6-8-3-4-9-10(5-8)14-7-13-9/h3-5h,6-7,12h2,1-2h3key: oizbhkbnzxrxsm-uhfffaoyay smiles nc(c)(c)cc1=cc(oco2)=c2c=c1 properties chemical formula c11h15no2 molar mass 193.246 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.