O-Acetylpsilocin

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O-Acetylpsilocin
O-Acetylpsilocin chemical structure.png
O-Acetylpsilocin.png
Systematic (IUPAC) name
3-[2-(Dimethylamino)ethyl]-1H-indol-4-yl acetate
Clinical data
Legal status
  • CA: Unscheduled
  • UK: Class A
  • US: Unscheduled
  • May be considered illegal under analog laws
Routes of
administration		 Oral, IV, intranasal, rectal
Identifiers
CAS Number 92292-84-7 YesY
ATC code none
PubChem CID: 15429212
ChemSpider 21106357 YesY
Synonyms 4-Acetoxy-N,N-dimethyltryptamine, 3-(2'-dimethylaminoethyl)-4-acetoxy-indole[1]
Chemical data
Formula C14H18N2O2
Molecular mass 246.3049 g/mol
  • CC(=O)Oc2cccc1ncc(CCN(C)C)c12
  • InChI=1S/C14H18N2O2/c1-10(17)18-13-6-4-5-12-14(13)11(9-15-12)7-8-16(2)3/h4-6,9,15H,7-8H2,1-3H3 YesY
  • Key:RTLRUOSYLFOFHV-UHFFFAOYSA-N YesY
Physical data
Melting point 172 to 173 °C (342 to 343 °F)
  (verify)

O-Acetylpsilocin (also known as psilacetin, 4-acetoxy-DMT, or 4-AcO-DMT) is a synthetically produced psychoactive drug and has been suggested by David Nichols to be a potentially useful alternative to psilocybin for pharmacological studies, as they are both believed to be prodrugs of psilocin.[2] However, some users report that O-acetylpsilocin's subjective effects differ from that of psilocybin and psilocin.[3] It is the acetylated form of the psilocybin mushroom alkaloid psilocin and is a lower homolog of 4-AcO-DET, 4-AcO-MiPT and 4-AcO-DiPT.

History

O-Acetylpsilocin (psilacetin) and several other esters of psilocin were patented on January 16, 1963 by Sandoz Ltd. via Albert Hofmann & Franz Troxler.[4][1] Despite this fact, psilacetin remains a psychedelic with a limited history of use. It is theorized to be a prodrug for psilocin, as is psilocybin, which is naturally occurring in various mushrooms. Psilacetin is O-acetylated psilocin, whereas psilocybin is O-phosphorylated.

Chemistry

O-Acetylpsilocin can be obtained by acetylation of psilocin under alkaline or strongly acidic conditions. It is a synthetic compound. However, it is believed to be a prodrug of psilocin, which is natural and occurs in many mushrooms along with psilocybin. O-Acetylpsilocin is more resistant than psilocin to oxidation under basic conditions due to its acetoxy group. While O-acetylpsilocin is not well researched (considered by many to be a research chemical, as opposed to psilocin and psilocybin), it is not as difficult to produce as psilocybin, and may be an appropriate substitute for psilocybin in psychedelic research because of their similar mechanism of action.[2]

Pharmacology

See psilocin for more details.

In the body O-acetylpsilocin is deacetylated to psilocin by deacetylases/acetyltransferases during first pass metabolism[citation needed] and during subsequent passes through the liver (evident as psilacetin is also active via parenteral routes of ingestion). Its ability to alter cellular metabolism by competing for the deacetylase enzyme causes a perceptible loss of cellular heat generation capacity at doses between 0.4 and 0.8mmol.

Claims of subjective differences in effect between the acetylated and not acetylated forms of psilocin;[3] some users report that O-acetylpsilocin lasts slightly longer; others report that it lasts for a considerably shorter time. Many users report less body load and nausea compared to psilocin. Some users find that the visual distortions produced by O-acetylpsilocin more closely resemble those produced by DMT than those produced by psilocin. These differences could be possible if psilacetin is active itself and not merely as a prodrug.

Dosage

Lua error in package.lua at line 80: module 'strict' not found. A dose of O-acetylpsilocin is 8 mg - 30 mg.[citation needed] These are slightly lower than that of psilocin. Some report very strong effects with 15 mg. A dose of 15 mg can produce a very profound experience, with effects such as ego loss, strong visuals (open and closed eye), and other effects similar to a high dose of psilocin. Comparison to psilocin dosage suggests that O-acetylpsilocin is somewhat more potent, and possibly more variable in terms of subjective susceptibility. O-Acetylpsilocin seems to have a more steep dose-effect curve than psilocin; therefore, caution should be taken, especially with higher doses. There is no known LD50, as there are no reported cases of fatal overdose.

Dosages vary slightly depending on the type of salt. The hydrochloride has a higher molecular mass and is therefore less potent on a per weight basis than its freebase form; however, freebase O-acetylpsilocin is relatively unstable and will degrade quickly at room temperature. O-Acetylpsilocin is now most commonly distributed as the fumaric acid salt (O-acetylpsilocin fumarate). The fumarate is even less potent on a per weight basis, but is also considerably more stable and will not degrade substantially at room temperature. The ratio of hydrochloride to fumarate is approximately .93:1.

O-Acetylpsilocin fumarate Oral Dose Intranasal
Threshold 4 mg-7 mg 2 mg-4 mg
Light 8 mg-12 mg 3 mg-10 mg
Common 13 mg-17 mg 8 mg-18 mg
Strong 18 mg-23 mg 15 mg-25 mg
Heavy 24 mg+ 29 mg+

These above doses are taken from the site erowid.org, which advises potential users of this chemical as a psychedelic drug: "Please note that the above doses should only be used as a general outline. This chemical is still relatively new, with a short history of human use. Every individual reacts differently to every chemical."

Effects

Lua error in package.lua at line 80: module 'strict' not found. O-Acetylpsilocin is theorized to be metabolized into psilocin, as such is the case with psilocybin;[citation needed] however, reports indicate that O-acetylpsilocin may be active on its own.[citation needed] The effects of O-acetylpsilocin are therefore somewhat similar to the effects of psilocybin and psilocin.[medical citation needed]

Positive

  • Brightened colors / enhanced visual perception
  • Introspection and philosophical insights
  • Stimulation/ sensation / tingling (serotonin system)
  • Euphoria
  • Perceptual enhancement
  • Empathy
  • Sexual arousal

Neutral

  • Coldness/cold sensations
  • Mydriasis
  • Hyperarousal
  • Colour alteration/fluorescent patterns/tracers
  • Time dilation and nonlinearity
  • Synesthesia
  • Dissociation (only at very high doses)
  • Sedation / Somnolence
  • Lethargy, fatigue
  • Auditory hallucinations

Negative effects

  • Mild to severe anxiety
  • Shivering
  • Paranoia
  • Stomach discomfort
  • Insomnia
  • Overly-intense experience (at high doses)
  • Overwhelming ideas and/or racing thoughts
  • Difficulty speaking
  • Motor impairment, vertigo
  • Confusion
  • Significantly elevated heart rate
  • Hypothermia

Legality

Lua error in package.lua at line 80: module 'strict' not found. O-Acetylpsilocin is unscheduled in the United States. It may be considered an analog of psilocin, which is a Schedule I drug under the Controlled Substances Act of the USA, and as such sale for human consumption or possession to ingest or use for illicit non-medical or industrial intents and purposes could be prosecuted as crimes under the Federal Analog Act.

O-Acetylpsilocin is illegal in the UK under the Misuse of Drugs Act 1971.

O-Acetylpsilocin is illegal in Italy as it is an ester of a prohibited substance.

See also

References

  1. ↑ 1.0 1.1 US patent 3075992, Hofmann A, Troxler F, "Esters of indoles", assigned to Sandoz Ltd. 
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 http://www.erowid.org/experiences/subs/exp_4AcODMT.shtml
  4. ↑ US 3075992 

External links

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