Ethylpropyltryptamine
Width200px
Width 2200px
ClassSerotonergic psychedelic; Hallucinogen
Atc prefixNone
Cas number850032-68-7
Pubchem74405184
Chemspiderid81407759
UniiFRE36KL4BD
Chembl4871007
SynonymsEPT; N-Ethyl-N-propyltryptamine
Iupac nameN-ethyl-N-[2-(1H-indol-3-yl)ethyl]propan-1-amine
C15
H22
N2
SmilesCCCN(CC)CCC1=CNC2=CC=CC=C12
Stdinchi1S/C15H22N2/c1-3-10-17(4-2)11-9-13-12-16-15-8-6-5-7-14(13)15/h5-8,12,16H,3-4,9-11H2,1-2H3
StdinchikeyLCDYRMYSOIVPRS-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.[1]

Use and effects

EPT was not included nor mentioned in Alexander Shulgin's book TiHKAL (Tryptamines I Have Known and Loved).[2]

Interactions

See also: Psychedelic drug#Interactions and Trip killer#Serotonergic psychedelic antidotes

Chemistry

Analogues

Analogues of EPT include methylethyltryptamine (MET), methylpropyltryptamine (MPT), diethyltryptamine (DET), dipropyltryptamine (DPT), among others.[2]

Society and culture

Canada

EPT is not a controlled substance in Canada as of 2025.[3]

United Kingdom

It is illegal to sell, distribute, supply, transport or trade the pharmaceutical drug under the Psychoactive Substances Act of 2016.[4]

United States

EPT is unscheduled[5] 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.

See also

References

  1. ^ Tanaka R, Kawamura M, Hakamatsuka T, Kikura-Hanajiri R (January 2021). "Identification of six tryptamine derivatives as designer drugs in illegal products.". Forensic Toxicology. 39 (1): 248–258. doi:10.1007/s11419-020-00556-5
  2. ^
  3. ^ "Controlled Drugs and Substances Act". Department of Justice Canada. Retrieved 19 January 2026.
  4. ^ "Misuse of Drugs Act 1971". Legislation.gov.uk
  5. ^ "Orange Book: List of Controlled Substances and Regulated Chemicals (January 2026)", United States: U.S. Department of Justice: Drug Enforcement Administration (DEA): Diversion Control Division, January 2026