Ethylone, also known as 3,4-methylenedioxy-N-ethylcathinone, is a recreational designer drug classified as an entactogen, stimulant, and psychedelic of the phenethylamine, amphetamine, and cathinone chemical classes. It is the β-keto analogue of MDEA ("Eve"). Ethylone has only a short history of human use and is reported to be less potent than its relative methylone. In the United States, it began to be found in cathinone products in late 2011.
Ethcathinone, also known as ethylpropion or ETH-CAT, is a stimulant drug of the phenethylamine, amphetamine, and cathinone chemical classes. It is an active metabolite of the prodrug diethylcathinone and is fully responsible for its effects. Ethcathinone has been identified as an ingredient in both quasi-legal "party pills", and, along with mephedrone, has also been reported as having been sold as "ecstasy" in the Australian city of Cairns.
Flephedrone, also known as 4-fluoromethcathinone (4-FMC), is a stimulant drug of the cathinone chemical class that has been sold online as a designer drug starting in 2008.
α-Pyrrolidinopentiophenone (α-PVP), also known as α-pyrrolidinovalerophenone, O-2387, β-keto-prolintane, prolintanone, or desmethylpyrovalerone, is a synthetic stimulant of the cathinone class developed in the 1960s that has been sold as a designer drug and often consumed for recreational reasons. α-PVP is chemically related to pyrovalerone and is the ketone analog of prolintane.
Pentylone is a stimulant developed in the 1960s. It is a substituted cathinone that has been identified in some samples of powders sold as "NRG-1", along with varying blends of other cathinone derivatives including flephedrone, MDPBP, MDPV, and 4-MePPP. It was also found in combination with 4-MePPP being sold as "NRG-3". Reports indicate side effects include paranoia, agitation, and insomnia, with effects lasting for several days at high doses.
Eutylone is a stimulant and empathogenic drug of the phenethylamine, amphetamine, phenylisobutylamine, and cathinone families which was developed in the 1960s, which is classified as a designer drug. It was first reported to the EMCDDA in 2014 and became widespread internationally in 2019-2020 following bans on the related compound ephylone. It is a synthetic cathinone. In 2021, eutylone was the most common cathinone identified by the Drug Enforcement Administration in the United States.
4-Methylethcathinone or 4-MEC is a chemical that bears a chemical resemblance to mephedrone. Due to its similarity to mephedrone, it is thought to be a stimulant and entactogen drug of the phenethylamine, amphetamine, and cathinone chemical classes. It has been marketed alone or in mixtures with other substituted cathinones under the name "NRG-2", although other blends such as "NRG-1" may have been more ambiguous with their ingredients.
Pentedrone is a stimulant of the cathinone class that has been sold as a designer drug and has been found since 2010 as an ingredient in a number of "bath salt" mixes sold as legal highs.
AB-FUBINACA (AMB-FUBINACA) is a psychoactive drug that acts as a potent agonist for the cannabinoid receptors, with Ki 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. It was originally developed by Pfizer in 2009 as an analgesic medication but was never pursued for human use. In 2012, it was discovered as an ingredient in synthetic cannabinoid blends in Japan, along with a related compound AB-PINACA, which had not previously been reported.
AB-CHMINACA is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor (Ki = 0.78 nM) and CB2 receptor (Ki = 0.45 nM) and fully substitutes for Δ9-THC in rat discrimination studies, while being 16x more potent. Continuing the trend seen in other cannabinoids of this generation, such as AB-FUBINACA and AB-PINACA, it contains a valine amino acid amide residue as part of its structure, where older cannabinoids contained a naphthyl or adamantane residue.
5F-ADB (also known as MDMB-5F-PINACA and 5F-MDMB-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 and has been sold online as a designer drug. 5F-ADB is a potent agonist 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 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.
α-Pyrrolidinohexiophenone is a synthetic stimulant drug of the cathinone class developed in the 1960s which has been reported as a novel designer drug.
N-Ethylhexedrone (also known as α-ethylaminocaprophenone, N-ethylnorhexedrone, hexen, and NEH) is a stimulant of the cathinone class that acts as a norepinephrine–dopamine reuptake inhibitor (NDRI) with IC50 values of 0.0978 and 0.0467 μM, respectively. N-Ethylhexedrone was first mentioned in a series of patents by Boehringer Ingelheim in the 1960s which led to the development of the better-known drug methylenedioxypyrovalerone (MDPV). Since the mid-2010s, N-ethylhexedrone has been sold online as a designer drug. In 2018, N-ethylhexedrone was the second most common drug of the cathinone class to be identified in Drug Enforcement Administration seizures.
N-Ethylpentylone is a substituted cathinone and stimulant drug which was developed in the 1960s.
N-Ethylpentedrone is a chemical compound of the substituted cathinone class. Since the mid-2010s, NEP has been sold online as a designer drug. It is the N-ethyl analog of pentedrone.
4-Methyl-α-ethylaminopentiophenone (4-MEAP) is a designer drug of the cathinone class. It is a higher homolog of 4-methylpentedrone (4-MPD) with an ethyl group in place of the methyl group. 4-MEAP has been found in samples of drugs sold as 4-MPD.
5F-MDMB-PICA (MDMB-5F-PICA) is a designer drug and synthetic cannabinoid. In 2018, it was the fifth-most common synthetic cannabinoid identified in drugs seized by the Drug Enforcement Administration.
α-Pyrrolidinoisohexanophenone is a stimulant drug of the cathinone class that has been sold online as a designer drug. It acts as a potent norepinephrine-dopamine reuptake inhibitor (NDRI). In July 2016 α-PHiP was first identified as a designer drug when it was reported to the EMCDDA by a forensic laboratory in Slovenia. It is a positional isomer of pyrovalerone, with the methyl group shifted from the 4-position of the aromatic ring to the 4-position of the acyl chain. Similarly to other cathinones, use of α-PiHP can result in compulsive redosing, addiction, anxiety, paranoia, and psychosis.
TH-PVP is a substituted cathinone derivative which has been sold as a designer drug. It was first identified by a forensic laboratory in Hungary in 2015, but has subsequently been found in numerous other countries around the world including Spain, Belgium, Poland, Turkey and Brazil. Pharmacological studies in vitro showed it to inhibit reuptake and promote the release of monoamine neurotransmitters with some selectivity for serotonin, but it failed to produce stimulant effects in animals, and has a pharmacological profile more comparable to that of sedating empathogens such as MDAI and 5-Methyl-MDA.
Dimethylone (βk-MDDMA) is a substituted cathinone derivative with stimulant and empathogenic effects. Unlike the corresponding amphetamine derivative MDDM which is thought to be practically inactive, dimethylone substitutes for methamphetamine and MDMA in animal studies and has been sold as a designer drug.
