pentylone pentylone pentylone (β-keto-methyl​benzo​dioxolyl​pentanamine, βk-methyl-k, βk-mbdp, methyl​enedioxy​pentedrone, or 1‐(3,4‐methylenedioxyphenyl)‐2‐(methylamino)pentan‐1‐one) is a stimulant developed in the 1960s. it is a substituted cathinone (a type of substituted phenethylamine). it has been identified in some samples of powders sold as "nrg-1", along with varying blends of other cathinone derivatives including flephedrone, mdpbp, mdpv and 4-meppp. it was also found in combination with 4-meppp being sold as "nrg-3". reports indicate side effects include feelings of paranoia, agitation and inability to sleep, with effects lasting for several days at high doses. pentyloneclinical dataatc codenonelegal statuslegal status de: anlage i (authorized scientific use only) uk: class b us: schedule i illegal in sweden and finland identifiers iupac name (±)-1-(1,3-benzodioxol-5-yl)-2-(methylamino)pentan-1-one cas number698963-77-8 y 17763-01-8 (hydrochloride)pubchem cid60208608chemspider29786041 nuniiign39wgh0qcomptox dashboard (epa)dtxsid401014183 chemical and physical dataformulac13h17no3molar mass235.283 g·mol−13d model (jsmol)interactive image smiles c2cc1ococ1cc2c(=o)c(nc)ccc inchi inchi=1s/c13h17no3/c1-3-4-10(14-2)13(15)9-5-6-11-12(7-9)17-8-16-11/h5-7,10,14h,3-4,8h2,1-2h3 nkey:dfmlulieuuxxsa-uhfffaoysa-n n ny (what is this?) (verify) pharmacology pentylone acts as a serotonin-norepinephrine-dopamine reuptake inhibitor and a serotonin releasing agent. legality pentylone is banned in canada, germany, sweden, the united states and in the uk.