|Summary sheet: 4-HO-DiPT|
|Molecular structure of 4-HO-DiPT|
|Common names||4-HO-DiPT, Iprocin|
|Routes of Administration|
4-Hydroxy-diisopropyltryptamine (also known as 4-HO-DiPT and Iprocin) is a lesser-known psychedelic substance of the tryptamine class that produces psilocin-like psychedelic effects when administered. It is the 4-hydroxy analog of DiPT and is structurally related to tryptamines like 4-HO-DMT (Psilocin), 4-HO-MiPT (Miprocin), and 4-HO-DET (Ethocin).
Following the publication of its synthesis by David B. Repke in 1977, its effects in humans were investigated by Alexander Shulgin. It is characterized in his 1997 book TiHKAL ("Tryptamines I Have Known and Loved") and is noted for being unique among psychedelics in terms of its speed (apparent 15 minutes after ingestion), intensity (20 milligrams can produce a transcendent peak experience), brevity (2-3 hours), and dose sensitivity. Additionally, idiosyncratic physical effects like muscle tremors and bodily malaise were noted.
Today, 4-HO-DiPT is used for both recreational and entheogenic purposes. It is relatively uncommon and occasionally distributed on the online research chemical market. Very little is known about the pharmacological properties, metabolism, and toxicity in humans, and it has a limited history of human use. It is highly advised to use harm reduction practices if using this substance.
- 1 Chemistry
- 2 Pharmacology
- 3 Subjective effects
- 4 Toxicity and harm potential
- 5 Legal status
- 6 See also
- 7 External links
- 8 References
4-HO-DiPT, or 4-Hydroxy-N,N-diisopropyltryptamine, is a synthetic indole alkaloid molecule of the tryptamine chemical class. Tryptamines share a core structure comprised of a bicyclic indole heterocycle attached at R3 to an amino group via an ethyl side chain. 4-HO-DiPT is substituted at R4 of its indole heterocycle with a hydroxyl functional group OH−. It also contains two isopropyl groups bound to the terminal amine RN of its tryptamine backbone.
Like most psychedelic tryptamines, 4-HO-DiPT is thought to act principally as a 5-HT2A partial agonist. The psychedelic effects are believed to come from 4-HO-DiPT's binding efficacy at the 5-HT2A receptors. However, the role of these interactions and how they result in the psychedelic experience continues to remain elusive.
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The effects listed below are based upon the subjective effects index and personal experiences of PsychonautWiki contributors. The listed effects should be taken with a grain of salt and will rarely (if ever) occur all at once, but heavier doses will increase the chances and are more likely to induce a full range of effects. Likewise, adverse effects become much more likely on higher doses and may include serious injury or death.
- Drifting (melting, breathing, morphing and flowing)
- Colour shifting
- Depth perception distortions
- Perspective distortions
- Symmetrical texture repetition
- After images
- Brightness alteration
There are currently no anecdotal reports which describe the effects of this compound within our experience index. Additional experience reports can be found here:
Toxicity and harm potential
The toxicity and long-term health effects of recreational 4-HO-DiPT use do not seem to have been studied in any scientific context and the exact toxic dose is unknown. This is because 4-HO-DiPT is a research chemical with very little history of human usage.
Anecdotal reports from those who have tried 4-HO-DiPT suggests that there are no negative health effects attributed to simply trying it by itself at low to moderate doses and using it very sparingly (but nothing can be completely guaranteed). Independent research should always be done to ensure that a combination of two or more substances is safe before consumption.
It is strongly recommended that one use harm reduction practices when using this drug.
Tolerance and addiction potential
4-HO-DiPT is not habit-forming and the desire to use it can actually decrease with regular consumption. Like with most psychedelics, it is most often thought to be self-regulating.
Tolerance to the effects of 4-HO-DiPT are built almost immediately after ingestion. After that, it takes about 3 days for the tolerance to be reduced to half and 7 days to be back at baseline (in the absence of further consumption). 4-HO-DiPT presents cross-tolerance with all psychedelics, meaning that after the consumption of 4-HO-DiPT all psychedelics will have a reduced effect.
Due to its relative obscurity, the possession and sale of 4-HO-DiPT is unscheduled in most countries.
- Sweden: 4-HO-DiPT is classified as a "health hazard" under the act "Lagen om förbud mot vissa hälsofarliga varor" (translated to the "Act on the Prohibition of Certain Goods Dangerous to Health") as of March 1, 2005 in their regulation SFS 2005:26, making it illegal to sell or possess.
- United Kingdom: 4-HO-DiPT is a Class A drug in the United Kingdom as a result of the tryptamine catch-all clause.
- United States: 4-HO-DiPT is unscheduled in the United States. It may be considered an analogue of psilocin (4-HO-DMT), a Schedule I drug under the Controlled Substances Act. As such, the sale for human consumption or the use for illicit non-medical or industrial intents and purposes could be prosecuted as crimes under the Federal Analogue Act.
- Florida: 4-HO-DiPT is a Schedule I controlled substance in the state of Florida, making it illegal to buy, sell, or possess.
- https://www.erowid.org/library/books_online/tihkal/tihkal17.shtml Entry in TIHKAL
- Repke, DB; Ferguson, WJ; Bates, DK. Psilocin analogs. 1. Synthesis of 3-[2-(dialkylamino)ethyl]- and 3-[2-(cycloalkylamino)ethyl]indol-4-ols. J. Heterocycl. Chem., 1 Jan 1977, 14 (1), 71–74. 273 kB. http://dx.doi.org/10.1002/jhet.5570140113 | http://onlinelibrary.wiley.com/doi/10.1002/jhet.5570140113/abstract
- Shulgin, Alexander. "Pharmacology Lab Notes #2". Lafayette, CA. (1976-1980). p293 (Erowid.org) | https://erowid.org/library/books_online/shulgin_labbooks/shulgin_labbook2_searchable.pdf
- Shulgin, A., & Shulgin, A. (1991). IsomerDesign: "TiHKAL" - #17 - 4-HO-DiPT. Retrieved Jan 22, 2018.
- Misuse of Drugs Act 1971 (Legislation.gov.uk) |http://www.legislation.gov.uk/ukpga/1971/38/schedule/2/part/I#reference-M_F_c7632653-ddad-4420-f307-e3da1e36d30e