Dipropyltryptamine

Dipropyltryptamine
Clinical data
Other namesDPT; Dipropyl-T; N,N-Dipropyltryptamine; 3-(2-(Dipropylamino)ethyl)indole; "The Light"
Routes of
administration
Oral, smoking, insufflation, rectal, intramuscular injection, intravenous injection
Drug classSerotonin receptor agonist; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
ATC code
  • None
Legal status
Legal status
  • DE: NpSG (Industrial and scientific use only)
  • UK: Class A
  • US: Unscheduled
Pharmacokinetic data
Onset of actionOral: Fast
INTooltip Intranasal administration: 10–30 minutes
Smoking: ≤2–5 min
IMTooltip Intramuscular injection: 2–15 minutes
Duration of actionOral: 2–4 hours (but up to 12 hours at high doses)
INTooltip Intranasal administration: 2–4 hours
Smoking: 20 min–2 hours
IMTooltip Intramuscular injection: ~3 hours
Identifiers
  • N-[2-(1H-indol-3-yl)]ethyl-N-propylpropan-1-amine
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC16H24N2
Molar mass244.382 g·mol−1
3D model (JSmol)
Melting point174.5 to 178 °C (346.1 to 352.4 °F)
  • CCCN(CCC)CCC1=CNC2=C1C=CC=C2
  • InChI=1S/C16H24N2/c1-3-10-18(11-4-2)12-9-14-13-17-16-8-6-5-7-15(14)16/h5-8,13,17H,3-4,9-12H2,1-2H3 checkY
  • Key:BOOQTIHIKDDPRW-UHFFFAOYSA-N checkY
  (verify)

Dipropyltryptamine (DPT), also known as N,N-dipropyltryptamine or as "The Light", is a psychedelic drug of the tryptamine family related to dimethyltryptamine (DMT) and diethyltryptamine (DET). It is taken orally or by other routes such as smoking, insufflation, or injection. It has a relatively short duration of 2 to 4 hours orally or insufflated and 20 minutes to 2 hours smoked.

The drug acts as a serotonin receptor modulator, including as a serotonin 5-HT2A receptor agonist. It is a close structural homologue of DMT and DET and is a skeletal isomer of diisopropyltryptamine (DiPT). Derivatives of DPT include 4-HO-DPT and 5-MeO-DPT, among others.

DPT was first described in the literature by 1954. Its hallucinogenic effects were first described in 1966. The drug was encountered as a novel designer drug by 1968 and was reported as a possible treatment for alcoholism in 1973. DPT has never been made an explicitly controlled substance in the United States. It is the sacrament of the Temple of the True Inner Light, a New York City-based psychedelic church, which considers DPT and other psychedelics to be God.