α-pcyp α-pcyp α-pcyp is a stimulant drug of the cathinone class that has been sold online as a designer drug. in a series of alpha-substituted pyrrolidinyl cathinone derivatives developed in 2015, the alpha-cyclopentyl derivative was found to have around the same potency in vitro as an inhibitor of the dopamine transporter as the alpha-propyl derivative α-pvp, while the alpha-cyclohexyl derivative α-pcyp was around twice as strong. not to be confused with pcpy. α-pcyplegal statuslegal status ca: schedule i de: npsg (industrial and scientific use only) uk: under psychoactive substances act identifiers iupac name 2-cyclohexyl-1-phenyl-2-(pyrrolidin-1-yl)ethanone cas number1803168-11-7 ypubchem cid155884437uniipj2s9wh4a2chemical and physical dataformulac18h25nomolar mass271.404 g·mol−13d model (jsmol)interactive image smiles o=c(c(c1ccccc1)n2cccc2)c3ccccc3 inchi inchi=1s/c18h25no/c20-18(16-11-5-2-6-12-16)17(19-13-7-8-14-19)15-9-3-1-4-10-15/h2,5-6,11-12,15,17h,1,3-4,7-10,13-14h2key:fkehrwjwtwdtdb-uhfffaoysa-n