3',4'-methylenedioxy-α-pyrrolidinopropiophenone 3',4'-methylenedioxy-α-pyrrolidinopropiophenone 3',4'-methylenedioxy-α-pyrrolidinopropiophenone (mdppp) is a stimulant designer drug. it was sold in germany in the late 1990s and early 2000s as an ingredient in imitation ecstasy (mdma) pills. it shares a similar chemical structure with α-ppp and mdpv, and has been shown to have reinforcing effects in rats. 3',4'-methylenedioxy-α-pyrrolidinopropiophenoneclinical dataroutes ofadministrationby mouth, insufflation, vaporization, iv, rectal, sublinguallegal statuslegal status de: anlage i (authorized scientific use only) uk: class b pharmacokinetic datametabolismhepaticexcretionprimarily urine (renal)identifiers iupac name (rs)-1-(3,4-methylenedioxyphenyl)-2-(1-pyrrolidinyl)-1-propanone cas number783241-66-7pubchem cid6430845chemspider4936183unii83ip4lih8echemical and physical dataformulac14h17no3molar mass247.294 g·mol−13d model (jsmol)interactive imagechiralityracemic mixture smiles c3c1ococ1ccc3c(=o)c(c)n2cccc2 inchi inchi=1s/c14h17no3/c1-10(15-6-2-3-7-15)14(16)11-4-5-12-13(8-11)18-9-17-12/h4-5,8,10h,2-3,6-7,9h2,1h3key:niyqotcyxgxmpi-uhfffaoysa-n metabolism mdppp appears to have a similar metabolic fate as mdpv. legal status as of october 2015 mdppp is a controlled substance in china.