Chemistry:N-Ethylpentedrone

Short description: Designer drug of the substituted cathinone class

N-Ethylpentedrone
Legal status


Legal status	BR: F2 DE: NpSG (Industrial and scientific use only) UK: Class B
Identifiers
IUPAC name 2-(Ethylamino)-1-phenylpentan-1-one
CAS Number	779974-89-9 18268-16-1 (HCl)
PubChem CID	205592
ChemSpider	178126
UNII	B483GRH93Q
Chemical and physical data
Formula	C₁₃H₁₉NO
Molar mass	205.301 g·mol⁻¹
3D model (JSmol)	Interactive image
SMILES CCCC(C(=O)C1=CC=CC=C1)NCC
InChI InChI=InChI=1S/C13H19NO/c1-3-8-12(14-4-2)13(15)11-9-6-5-7-10-11/h5-7,9-10,12,14H,3-4,8H2,1-2H3 Key:QQAHEGDXEXIQPR-UHFFFAOYSA-N

N-Ethylpentedrone (also known as α-ethylaminopentiophenone, α-EAPP, α-ethylamino-valerophenone, N-ethylnorpentedrone, Ethylnorpentedrone, Norpentedrone, Ethylpentedrone, and NEP) is a chemical compound and stimulant of the substituted cathinone class.^[1] Since the mid-2010s, NEP has been sold online as a designer drug.^[2]^[3] It is the N-ethyl analog of pentedrone. N-Ethylpentedrone acts as a norepinephrine-dopamine reuptake inhibitor (NDRI) without inducing monoamine release. N-Ethylpentedrone also slightly inhibits reuptake serotonin without its release.^[4]

Legal status

NEP is illegal in Japan and^[5] China, and is classified as a '"potentially harmful substance"', thus, controlled.^[6]^[7] It has also been illegal in Taiwan since February 2026.^[8]

References

↑ "Structural characterization of cathinone-type designer drugs by EI mass spectrometry". Japanese Journal of Forensic Science and Technology 19 (2): 77–89. 2014. doi:10.3408/jafst.19.77.
↑ "2-(Ethylamino)-1-phenylpentan-1-one". New Synthetic Drugs Database. http://nsddb.eu/substance/415/.
↑ "Toxicological Analysis of Cases of Mixed Poisonings with Synthetic Cathinones and Other Drugs of Abuse". Journal of Analytical Toxicology 46 (9): 1008–1015. January 2023. doi:10.1093/jat/bkab119. PMID 34849994.
↑ "Role of amino terminal substitutions in the pharmacological, rewarding and psychostimulant profiles of novel synthetic cathinones". Neuropharmacology 186. March 2021. doi:10.1016/j.neuropharm.2021.108475. PMID 33529677.
↑ "指定薬物一覧" (in ja). Ministry of Health, Labour and Welfare. http://www.mhlw.go.jp/seisakunitsuite/bunya/kenkou_iryou/iyakuhin/yakubuturanyou/dl/meisho.pdf.
↑ "31 nya ämnen kan klassas som narkotika eller hälsofarlig vara" (in sv). Folkhälsomyndigheten. 21 June 2016. https://www.folkhalsomyndigheten.se/nyheter-och-press/nyhetsarkiv/2016/juni/31-nya-amnen-kan-klassas-som-narkotika-eller-halsofarlig-vara/.
↑ "The Swedish Governments Official List Of Narcotics". http://rkrattsbaser.gov.se/sfst?bet=1992:1554.
↑ "行政院公告中華民國115年2月13日院臺法字第1151002189號". 行政院公報資訊網. 13 February 2026. https://gazette.nat.gov.tw/EG_FileManager/eguploadpub/eg032031/ch01/type1/gov01/num1/Eg.pdf.

v t e Phenethylamines
Phenethylamines	Psychedelics: 25B-NBOMe 25C-NBOMe 25D-NBOMe 25I-NBOMe 25N-NBOMe 2C-B 2C-B-AN 2C-Bn 2C-Bu 2C-C 2C-CN 2C-CP 2C-D 2C-E 2C-EF 2C-F 2C-G 2C-G-1 2C-G-2 2C-G-3 2C-G-4 2C-G-5 2C-G-6 2C-G-N 2C-H 2C-I 2C-iP 2C-N 2C-NH2 2C-O 2C-O-4 2C-P 2C-Ph 2C-SE 2C-T 2C-T-2 2C-T-3 2C-T-4 2C-T-5 2C-T-6 2C-T-7 2C-T-8 2C-T-9 2C-T-10 2C-T-11 2C-T-12 2C-T-13 2C-T-14 2C-T-15 2C-T-16 2C-T-17 2C-T-18 2C-T-19 2C-T-20 2C-T-21 2C-T-22 2C-T-22.5 2C-T-23 2C-T-24 2C-T-25 2C-T-27 2C-T-28 2C-T-30 2C-T-31 2C-T-32 2C-T-33 2C-TFE 2C-TFM 2C-YN 2C-V Allylescaline DESOXY Escaline Isoproscaline Jimscaline Macromerine MEPEA Mescaline Metaescaline Methallylescaline Proscaline Psi-2C-T-4 TCB-2 Stimulants: Phenylethanolamine Hordenine Phenethylamine α-Methylphenethylamine (amphetamine) β-Methylphenethylamine m-Methylphenethylamine N-Methylphenethylamine o-Methylphenethylamine p-Methylphenethylamine Methylphenidate Entactogens: Lophophine MDPEA MDMPEA Others: BOH DMPEA
Amphetamines	Psychedelics: 3C-BZ 3C-E 3C-P Aleph Beatrice Bromo-DragonFLY D-Deprenyl DMA DMCPA DMMDA DOB DOC DOEF DOET DOI DOM DON DOPR DOTFM Ganesha MMDA MMDA-2 Psi-DOM TMA TeMA Stimulants: 2-FA 2-FMA 3-FA 3-FMA Acridorex Alfetamine Amfecloral Amfepentorex Amphetamine (Dextroamphetamine, Levoamphetamine) Amphetaminil Benfluorex Benzphetamine Cathine Clobenzorex Dimethylamphetamine Ephedrine Etilamfetamine Fencamfamin Fencamine Fenethylline Fenfluramine (Dexfenfluramine, Levofenfluramine) Fenproporex Flucetorex Fludorex Formetorex Furfenorex Gepefrine 4-Hydroxyamphetamine Iofetamine Isopropylamphetamine Lefetamine Lisdexamfetamine Mefenorex Metaraminol Methamphetamine (Dextromethamphetamine, Levomethamphetamine) Methoxyphenamine MMA Morforex Norfenfluramine L -Norpseudoephedrine N,alpha-Diethylphenylethylamine Oxifentorex Oxilofrine Ortetamine PBA PCA Phenpromethamine PFA PFMA PIA PMA PMEA PMMA Phenylpropanolamine Pholedrine Prenylamine Propylamphetamine Pseudoephedrine Sibutramine Tiflorex Tranylcypromine Xylopropamine Zylofuramine Entactogens: 4-FA 4-FMA 4-MA 4-MMA 4-MTA 5-APB 5-APDB 5-EAPB 5-IT 5-MAPB 5-MAPDB 6-APB 6-APDB 6-Chloro-MDMA 6-EAPB 6-IT 6-MAPB 6-MAPDB EDA IAP 2,3-MDA 3,4-MDA (tenamfetamine) MDEA MDHMA MDMA (midomafetamine) MDOH Methamnetamine MMDMA Naphthylaminopropane TAP Others: 3,4-DCA Amiflamine DiFMDA Selegiline (also D -Deprenyl)
Phentermines	Stimulants: Chlorphentermine Cloforex Clortermine Etolorex Mephentermine Pentorex Phentermine Entactogens: MDPH MDMPH Others: Cericlamine
Cathinones	Stimulants: 3-FMC 4-MC 4-BMC 4-CMC 4-EMC 4-FMC 4-MEC 4-MeMABP 4-MPD Amfepramone Benzedrone Brephedrone Buphedrone Bupropion Cathinone Dimethylcathinone Ethcathinone Eutylone Hydroxybupropion Methcathinone Methedrone NEB N-Ethylhexedrone N-Ethylpentedrone Pentedrone Pentylone Radafaxine Entactogens: 3,4-DMMC 3-MMC Butylone Ethylone Methylone Methylenedioxycathinone Mephedrone
Phenylisobutylamines	Entactogens: 4-CAB 4-MAB Ariadne BDB Butylone EBDB Eutylone MBDB Stimulants: Phenylisobutylamine
Phenylalkylpyrrolidines	Stimulants: α-PBP α-PHP α-PPP α-PVP MDPBP MDPPP MDPV 4-MePBP 4-MePHP 4-MePPP MOPPP MOPVP MPBP MPHP MPPP Naphyrone PEP Prolintane Pyrovalerone
Catecholamines (and close relatives)	6-FNE 6-OHDA a-Me-DA a-Me-TRA Adrenochrome Ciladopa D -DOPA (Dextrodopa) Dimetofrine Dopamine Epinephrine Epinine Etilefrine Ethylnorepinephrine Fenclonine Ibopamine Isoprenaline Isoetarine L -DOPA (Levodopa) L -DOPS (Droxidopa) L -Phenylalanine L -Tyrosine m-Tyramine Metanephrine Metaraminol Metaterol Metirosine Methyldopa N,N-Dimethyldopamine Nordefrin (Levonordefrin) Norepinephrine Norfenefrine (m-Octopamine) Normetanephrine Orciprenaline p-Octopamine p-Tyramine Phenylephrine Synephrine
Miscellaneous	AL-LAD Amidephrine Arbutamine Cafedrine Denopamine Desvenlafaxine Diphenidine Dizocilpine Dobutamine Dopexamine Ephenidine Etafedrine ETH-LAD Famprofazone Fluorolintane Hexapradol IP-LAD Lysergic acid amide Lysergic acid 2-butyl amide Lysergic acid 2,4-dimethylazetidide Lysergic acid diethylamide Methoxamine Methoxphenidine MT-45 PARGY-LAD Phenibut PRO-LAD Pronethalol Salbutamol (Levosalbutamol) Solriamfetol Theodrenaline Thiamphenicol UWA-101

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