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5F-ADB (also known as MDMB-5F-PINACA using systematic
EMCDDA The European Union Drugs Agency (EUDA), known until 2024 as the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA), is an agency of the European Union headquartered in Lisbon, Portugal, and established in 1993. In June 2022, the ...
nomenclature and 5F-MDMB-PINACA) is an
indazole Indazole, also called isoindazole, is a heterocyclic aromatic organic compound. This bicyclic compound consists of the fusion of benzene and pyrazole. Indazole is an amphoteric molecule which can be protonated to an indazolium cation or deprotona ...
-based synthetic
cannabinoid Cannabinoids () are several structural classes of compounds found primarily in the ''Cannabis'' plant or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tetrahydrocannabinol (THC) (delta-9-THC), the primary psychoact ...
from the indazole-3-carboxamide family, which has been used as an active ingredient in
synthetic cannabis Synthetic cannabinoids, or neocannabinoids, are a class of designer drug molecules that bind to the same receptors to which cannabinoids ( THC, CBD and many others) in cannabis plants attach. These novel psychoactive substances should not be co ...
products and has been sold online as a
designer drug A designer drug is a structural or functional analog of a controlled substance that has been designed to mimic the pharmacological effects of the original drug, while avoiding classification as illegal and/or detection in standard drug tests. ...
. 5F-ADB is a potent
agonist An agonist is a chemical that activates a Receptor (biochemistry), receptor to produce a biological response. Receptors are Cell (biology), cellular proteins whose activation causes the cell to modify what it is currently doing. In contrast, an R ...
of the CB1 receptor, though it is unclear whether it is selective for this target. 5F-ADB was first identified in November 2014 from
post-mortem An autopsy (also referred to as post-mortem examination, obduction, necropsy, or autopsia cadaverum) is a surgical procedure that consists of a thorough examination of a corpse by dissection to determine the cause, mode, and manner of death ...
samples taken from an individual who had died after using a product containing this substance. Subsequent testing identified 5F-ADB to have been present in a total of ten people who had died from unexplained drug overdoses in Japan between September 2014 and December 2014. 5F-ADB is believed to be extremely potent based on the very low levels detected in tissue samples, and appears to be significantly more toxic than earlier synthetic cannabinoid drugs that had previously been sold. In 2018, 5F-ADB was the most common synthetic cannabinoid to be identified in
Drug Enforcement Administration The Drug Enforcement Administration (DEA) is a Federal law enforcement in the United States, United States federal law enforcement agency under the U.S. Department of Justice tasked with combating illicit Illegal drug trade, drug trafficking a ...
seizures. 5F-ADB was also identified in
cannabidiol Cannabidiol (CBD) is a phytocannabinoid, one of 113 identified cannabinoids in ''Cannabis'', along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. Medically, it is an anticonvulsant used to treat multiple f ...
(CBD) products from a US-based CBD manufacturer in 2018.


Deaths

5F-MDMB-PINACA has been associated with 25 deaths in Europe between 2015 and 2017.


Legal status

In the United States, 5F-ADB is a
schedule I controlled substance The Controlled Substances Act (CSA) is the statute establishing federal U.S. drug policy under which the manufacture, importation, possession, use, and distribution of certain substances is regulated. It was passed by the 91st United State ...
. 5F-ADB was added to the Japanese banned drug list in December 2014.


See also

The positional isomer, 4F-MDMB-PINACA has been characterised and is sometimes known as 4F-ADB, despite "ADB" not having been used as a name for MDMB-PINACA. This is distinct from 4F-MDMB-BINACA which is a notable compound in its own right. *
5F-AB-PINACA 5F-AB-PINACA is an indazole-based synthetic cannabinoid that is derived from a series of compounds originally developed by Pfizer in 2009 as an analgesic medication, and has been sold online as a designer drug. 5F-AB-PINACA has been reported t ...
*
5F-AMB 5F-AMB (also known as 5F-MMB-PINACA and 5F-AMB-PINACA) is an indazole-based synthetic cannabinoid from the indazole-3-carboxamide family, which has been used as an active ingredient in synthetic cannabis products. It was first identified in Jap ...
*
5F-APINACA 5F-APINACA (also known as A-5F-PINACA, 5F-AKB-48 or 5F-AKB48) is an indazole-based synthetic cannabinoid that has been sold online as a designer drug. Structurally it closely resembles cannabinoid compounds from patent WO 2003/035005 but with ...
*
AB-CHMINACA AB-CHMINACA is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor (''K''i = 0.78 nM) and CB2 receptor (''K''i = 0.45 nM) and fully substitutes for Δ9-THC in rat discrimination st ...
*
AB-FUBINACA AB-FUBINACA ( AMB-FUBINACA) is a psychoactive drug that acts as a potent agonist for the cannabinoid receptors, with ''K''i values of 0.9 nM at CB1 and 23.2 nM at CB2 and EC50 values of 1.8 nM at CB1 and 3.2 nM at CB2. I ...
*
AB-CHFUPYCA AB-CHFUPYCA (also AB-CHMFUPPYCA) is a compound that was first identified as a component of synthetic cannabis products in Japan in 2015. The name "AB-CHFUPYCA" is an acronym of its systematic name ''N''-(1-Amino-3-methyl-1-oxoButan-2-yl)-1-(Cycl ...
*
AB-PINACA AB-PINACA is a compound that was first identified as a component of synthetic cannabis products in Japan in 2012. It was originally developed by Pfizer in 2009 as an analgesic medication. AB-PINACA acts as a potent agonist for the CB1 recepto ...
*
ADB-BINACA ADB-BINACA (also known as ADMB-BZINACA using EMCDDA naming standards) is a cannabinoid designer drug that has been found as an ingredient in some synthetic cannabis products. It was originally developed by Pfizer as a potential analgesic, and ...
*
ADB-CHMINACA ADB-CHMINACA (also known as ADMB-CHMINACA and MAB-CHMINACA) is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor with a binding affinity of ''K''i = 0.289 nM and was originally developed by Pfiz ...
*
ADB-FUBINACA ADB-FUBINACA (ADMB-FUBINACA) is a designer drug identified in synthetic cannabis blends in Japan in 2013. In 2018, it was the third-most common synthetic cannabinoid identified in drugs seized by the Drug Enforcement Administration. The name ...
*
ADB-PINACA ADB-PINACA is a cannabinoid designer drug that is an ingredient in some synthetic cannabis products. It is a potent agonist of the CB1 receptor and CB2 receptor with EC50 values of 0.52 nM and 0.88 nM respectively. Like MDMB-FUBIN ...
*
ADBICA ADBICA (also known as ADB-PICA) is a designer drug identified in synthetic cannabis blends in Japan in 2013. ADBICA had not previously been reported in the scientific literature prior to its sale as a component of synthetic cannabis blends. ADBI ...
* APICA *
APINACA APINACA (AKB48, ''N''-(1-adamantyl)-1-pentyl-1''H''-indazole-3-carboxamide) is a drug that acts as a reasonably potent agonist for the cannabinoid receptors. It is a full agonist at CB1 with an EC50 of 142 nM and Ki of 3.24 nM (compared to the ...
*
MDMB-CHMICA MDMB-CHMICA is an indole-based synthetic cannabinoid that is a potent agonist of the CB1 receptor and has been sold online as a designer drug. While MDMB-CHMICA was initially sold under the name "MMB-CHMINACA", the compound corresponding to thi ...
*
MDMB-FUBINACA MDMB-FUBINACA (also known as MDMB(N)-Bz-F and FUB-MDMB) is an indazole-based synthetic cannabinoid that is a potent agonist for cannabinoid receptors and that has been sold online as a designer drug. The structure of MDMB-FUBINACA contains the ...
*
PX-3 PX-3 (also known as APP-CHMINACA) is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor with a binding affinity of ''K''i = 47.6 nM and was originally developed by Pfizer in 2009 as an analgesic m ...


References

{{Cannabinoids Cannabinoids Designer drugs Organofluorides Indazolecarboxamides Tert-butyl compounds