Clinical data
ATC code none
Legal status
Legal status
CAS Number 61-51-8 N
PubChem (CID) 6090
DrugBank DB01460 YesY
ChemSpider 5865 YesY
Chemical and physical data
Formula C14H20N2
Molar mass 216.32 g/mol
3D model (Jmol) Interactive image
Melting point 169 to 171 °C (336 to 340 °F)
 NYesY (what is this?)  (verify)

DET, also known under its chemical name N,N-diethyltryptamine and as T-9,[1] is a psychedelic drug closely related to DMT and 4-HO-DET. However, despite its structural similarity to DMT it is active orally around 50–100 mg without the aid of MAO inhibitors lasting about 2–4 hours.


DET is an analogue of the common tryptamine hallucinogen N,N-Dimethyltryptamine or DMT.


The mechanism of action is thought to be serotonin receptor agonism, much like other classic psychedelics.[2]

DET is sometimes preferred over DMT because it can be taken orally, whereas DMT cannot. This is because the enzyme monoamine oxidase degrades DMT into an inactive compound before it is absorbed. To overcome this, it must be administered in a different manner, i.e. intravenously, intramuscularly, by inhalation, by insufflation, rectally, or ingested along with an inhibitor of monoamine oxidase. Because DET has ethyl groups attached to its nitrogen atom, monoamine oxidase is unable to degrade it. This is also true for many other tryptamines with larger nitrogen substituents.


Although DET is a synthetic compound with no known natural sources, it has been used in conjunction with the mycelium of Psilocybe cubensis to produce the synthetic chemicals 4-PO-DET (Ethocybin) and 4-HO-DET (Ethocin), as opposed to the naturally occurring 4-PO-DMT (Psilocybin) and 4-HO-DMT (Psilocin). Isolation of the alkaloids resulted in 3.3% 4-HO-DET and 0.01-0.8% 4-PO-DET.[3]

Psychosis model

Early studies of DET as well as other psychedelics were mainly focused on the presumed psychotomimetic properties.[4] Researchers theorized that abnormal metabolites of endogenous chemicals such as tryptamine, serotonin, and tryptophan could be the explanation for mental disorders as schizophrenia, or psychosis.[5] With the progression of science and pharmacological understanding this belief has been dismissed by most researchers.

See also


  1. "Erowid DET Vault : Chemistry". Retrieved 2008-01-08.
  2. Winter JC (September 1969). "Behavioral effects of N,N-diethyltryptamine: absence of antagonism by xylamidine tosylate". J. Pharmacol. Exp. Ther. 169 (1): 7–16. PMID 5306645.
  3. Gartz J (1989). "Biotransformation of tryptamine derivatives in mycelial cultures of Psilocybe". J. Basic Microbiol. 29 (6): 347–52. doi:10.1002/jobm.3620290608. PMID 2614674.
  5. "Effects of LSD-25, N,N-Dimethyltryptamine (DMT), and N,N-Diethyltryptamine (DET) on the Photic Evoked Responses in the unanesthetized Rabbit". Retrieved 2008-01-03.
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