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Ethylpropyltryptamine

Ethylpropyltryptamine (EPT), also known as N-ethyl-N-propyltryptamine, is a rarely encountered psychedelic drug in the tryptamine family. It has been identified in illicit products in Japan.

Column 1
EPT; N-Ethyl-N-propyltryptamine
Serotonergic psychedelic; Hallucinogen
.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}None
IUPAC name
N-ethyl-N-[2-(1H-indol-3-yl)ethyl]propan-1-amine
850032-68-7
74405184
81407759
FRE36KL4BD
ChEMBL4871007
DTXSID101336291
C15H22N2
230.355 g·mol−1
Interactive image
SMILES
CCCN(CC)CCC1=CNC2=CC=CC=C12
InChI
InChI=1S/C15H22N2/c1-3-10-17(4-2)11-9-13-12-16-15-8-6-5-7-14(13)15/h5-8,12,16H,3-4,9-11H2,1-2H3Key:LCDYRMYSOIVPRS-UHFFFAOYSA-N

Ethylpropyltryptamine (EPT), also known as N-ethyl-N-propyltryptamine, is a rarely encountered psychedelic drug in the tryptamine family. It has been identified in illicit products in Japan.

EPT was not included nor mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved).

Analogues of EPT include methylethyltryptamine (MET), methylpropyltryptamine (MPT), diethyltryptamine (DET), dipropyltryptamine (DPT), among others.

EPT is not a controlled substance in Canada as of 2025.

It is illegal to sell, distribute, supply, transport or trade the pharmaceutical drug under the Psychoactive Substances Act of 2016.

EPT is unscheduled but it may be considered an analogue of DMT, which is a Schedule I drug under the Controlled Substances Act. As such, the sale for human consumption could be illegal under the Federal Analogue Act.

  • Substituted tryptamine

  • EPT - Isomer Design

  • EPT - PsychonautWiki

  • The Small & Handy EPT Thread - Bluelight

  • The Small & Handy N-N-ethylpropyltryptamine (EPT) Thread - Bluelight

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