World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0011679802
Reproduction Date:

Title: 4-ho-mpt  
Author: World Heritage Encyclopedia
Language: English
Subject: 2,N,N-TMT, 4-HO-DBT, Dibutyltryptamine, 5-MeO-aMT, Lysergic acid diethylamide
Collection: Designer Drugs, Psychedelic Tryptamines, Tryptamines
Publisher: World Heritage Encyclopedia


ChemSpider  YesY
Jmol-3D images Image 1
Molecular formula C14H20N2O
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY   YesY/N?)

4-HO-MPT, or 4-hydroxy-N-methyl-N-propyltryptamine, is a lesser-known psychedelic drug. It is the 4-hydroxyl analog of MPT. 4-HO-MPT was first synthesized by Alexander Shulgin. In his book TiHKAL (Tryptamines I Have Known and Loved), the minimum dosage is listed as 10-20 mg, and the duration listed as 4–6 hours. The book describes 4-HO-MPT as producing visual distortion, vertigo, and slight insomnia.

Anecdotal reports on this substance vary greatly in detail, including any combination of visual distortion, sedation, stimulation, and dissociated thoughts. Some users report taking very large amounts via multiple routes of ingestion and feeling nothing. There are many possible explanations for this phenomenon, including placebo, fast tolerance-building, cross-tolerance with other compounds, differences between the salt and the freebase, differences in bio-availability between routes of ingestion, and an uncertainty of what users are actually ingesting.

Very little data exists about the pharmacological properties, metabolism, and toxicity of 4-HO-MPT. Additionally, this chemical may be considered illegal in the United States due to the Federal Analog Act. Extreme caution should be exercised by anyone planning on purchasing or ingesting this substance.

See also

External links

  • TIHKAL4-HO-MPT Entry in
  • 4-HO-MPT entry in TiHKAL • info

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.