|Chemical and physical data|
|Molar mass||175.23 g/mol|
|3D model (Jmol)|
|NY (what is this?)|
5-APB (abbreviation of "5-(2-aminopropyl)benzofuran"; see infobox for the correct IUPAC name) is an empathogenic psychoactive compound of the substituted benzofuran, substituted amphetamine and substituted phenethylamine classes. 5-APB and other compounds are sometimes informally called "Benzofury".
5-APB is commonly found as the succinate and hydrochloride salt. The hydrochloride salt is 10% more potent by mass and doses should be adjusted accordingly.
5-APB is a serotonin–norepinephrine–dopamine reuptake inhibitor with Ki(NET)=180 nmol/L, Ki(DAT)=265 nmol/L and Ki(SERT)=811 nmol/L. It is also a serotonin–norepinephrine–dopamine releasing agent. 5-APB is a potent agonist for the 5-HT2A and 5-HT2B receptors (Ki of 14 nmol/L at 5-HT2B with an efficacy of 0.924). This agonism for 5-HT2B makes it likely that 5-APB would be cardiotoxic with long term use, as seen in other 5-HT2B agonists such as fenfluramine and MDMA. 5-APB is also an agonist of the 5-HT2C receptor.
A forensic standard of 5-APB is available, and the compound has been posted on the Forendex website of potential drugs of abuse. The US Department of Justice and DEA have also conducted studies concerning the detection of 5-APB.
Users describe effects as euphoric. Largely, effects reported were similar to that of the drug MDA but not as strong. Recreational use of 5-APB has been associated with death in combination with other drugs.
On March 5, 2014 the UK Home Office announced that 6-APB would be made a class B drug on 10 June 2014 alongside every other benzofuran entactogen and many structurally related drugs.
- http://www.emcdda.europa.eu/publications/implementation-reports/2010 EMCDDA–Europol 2010 Annual Report on the implementation of Council Decision 2005/387/JHA
- Iversen, L.; Gibbons, S.; Treble, R.; Setola, V.; Huang, X. P.; Roth, B. L. (2013). "Neurochemical profiles of some novel psychoactive substances". European Journal of Pharmacology. 700 (1-3). PMC . PMID 23261499. doi:10.1016/j.ejphar.2012.12.006.
- Rickli, A; Kopf, S; Hoener, MC; Liechti, ME (2015). "Pharmacological profile of novel psychoactive benzofurans". British Pharmacological Society. 172 (13). PMC . PMID 25765500. doi:10.1111/bph.13128.
- US patent 7045545, Karin Briner et al, "Aminoalkylbenzofurans as serotonin (5-HT(2c)) agonists", published 2000-01-19, issued 2006-16-03
- Southern Association of Forensic Scientists, http://forendex.southernforensic.org/index.php/detail/index/1135
- USDOJ/DEA, http://www.justice.gov/dea/pr/microgram-journals/2011/mj8-2_62-74.pdf
- "UCSD student dies of drug overdose after on-campus music festival". Los Angeles Times. August 20, 2014.
- "The effects of benzofury (5-APB) on the dopamine transporter and 5-HT2-dependent vasoconstriction in the rat". Prog Neuropsychopharmacol Biol Psychiatry. 48: 57–63. Jan 3, 2014. PMID 24012617. doi:10.1016/j.pnpbp.2013.08.013.
5-APB ... has been implicated in 10 recent drug-related deaths in the UK
- UK Home Office (2014-03-05). "The Misuse of Drugs Act 1971 (Ketamine etc.) (Amendment) Order 2014". UK Government. Retrieved 2014-03-11.
(and close relatives)