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Other names | DOC; 2,5-Dimethoxy-4-chloroamphetamine; 4-Chloro-2,5-dimethoxyamphetamine |
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ECHA InfoCard | 100.215.939 |
Chemical and physical data | |
Formula | C11H16ClNO2 |
Molar mass | 229.70 g·mol−1 |
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2,5-Dimethoxy-4-chloroamphetamine (DOC) is a psychedelic drug of the phenethylamine, amphetamine, and DOx families. It was presumably first synthesized by Alexander Shulgin, and was described in his book PiHKAL (Phenethylamines i Have Known And Loved). [2]
DOC is a substituted alpha-methylated phenethylamine, a class of compounds commonly known as amphetamines. The phenethylamine equivalent (lacking the alpha-methyl group) is 2C-C. DOC has a stereocenter and (R)-(−)-DOC is the more active stereoisomer.
Target | Affinity (Ki, nM) |
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5-HT1A | >9,200 (Ki) >10,000 (EC50 ) <10% (Emax ) |
5-HT1B | ND |
5-HT1D | ND |
5-HT1E | ND |
5-HT1F | ND |
5-HT2A | 1.4–4.0 (Ki) 2.9–11 (EC50) 81–102% (Emax) |
5-HT2B | 32 |
5-HT2C | 2–3.6 (Ki) 15 (EC50) 97% (Emax) |
5-HT3 | ND |
5-HT4 | ND |
5-HT5A | ND |
5-HT6 | ND |
5-HT7 | ND |
α1A–α1D | ND |
α2A–α2C | ND |
β1–β3 | ND |
D1–D5 | ND |
TAAR1 | >1,000 |
SERT | >10,000 (Ki) >8,600 (IC50 ) Minimal (EC50) |
NET | >7,700 (Ki) >8,400 (IC50) Minimal (EC50) |
DAT | >10,000 (Ki) >10,000 (IC50) Minimal (EC50) |
Notes: The smaller the value, the more avidly the drug binds to the site. All proteins are human unless otherwise specified. Refs: [3] [4] [5] [6] |
DOC acts as a serotonin 5-HT2A and 5-HT2C receptor agonist. Its psychedelic effects are mediated via its actions on the 5-HT2A receptor.[ citation needed ]
The drug is inactive as a monoamine releasing agent and reuptake inhibitor. [5]
DOC has shown reinforcing effects, including conditioned place preference (CPP) and self-administration, in rodents similarly to methamphetamine. [7] This is analogous to other findings in which various 2C and NBOMe drugs have been found to produce dopaminergic elevations and reinforcing effects in rodents. [8] [9] [10] [11] [12] [13] [14] Conversely however, in contrast to amphetamines like (–)-cathinone but similarly to mescaline, DOM has shown no stimulant-like or reinforcing effects in rhesus monkeys. [15] [16] [17] [18]
A normal average dose of DOC ranges from 0.2–7.0 mg [19] the former producing threshold effects, and the latter producing extremely strong effects. Onset of the drug is 1–3 hours, peak and plateau at 4–8 hours, and a gradual come down with residual stimulation at 9-20h. After effects can last well into the next day. [19] [20]
Unlike simple amphetamines, DOC is considered a chemical that influences cognitive and perception processes of the brain. The strongest supposed effects include open and closed eye visuals, increased awareness of sound and movement, and euphoria. In the autobiography PiHKAL, Alexander Shulgin included a description of DOC as "an archetypal psychedelic" (#64); its presumed full-range visual, audio, physical, and mental effects show exhilarating clarity, and some overwhelming, humbling, and "composting"/interweaving effects. [20]
Very little data exists about the toxicity of DOC. In April 2013, a case of death due to DOC was reported. The source does not specify whether the drug alone caused the death. [21] In 2014, a death was reported in which DOC was directly implicated as the sole causative agent in the death of a user. The autopsy indicated pulmonary edema and a subgaleal hemorrhage. [22]
DOC may be quantitated in blood, plasma or urine by gas chromatography-mass spectrometry or liquid chromatography-mass spectrometry to confirm a diagnosis of poisoning in hospitalized patients or to provide evidence in a medicolegal death investigation. Blood or plasma DOC concentrations are expected to be in a range of 1–10 μg/L in persons using the drug recreationally, >20 μg/L in intoxicated patients and >100 μg/L in victims of acute overdosage. [23]
Although rare on the black market, it has been available in bulk and shipped worldwide by select elite "Grey Market" Research Chemical suppliers for several years. Sales of DOC on blotting paper and in capsules was reported in late 2005 and again in late 2007. According to the DEA's Microgram from December 2007, the Concord Police Department in Contra Costa County, California, in the US, seized "a small piece of crudely lined white blotter paper without any design, suspected LSD 'blotter acid'". They added "Unusually, the paper appeared to be hand-lined using two pens, in squares measuring approximately 6 x 6 millimeters. The paper displayed fluorescence when irradiated at 365 nanometers; however, color testing for LSD with para-dimethylaminobenzaldehyde (Ehrlich's reagent) was negative. Analysis of a methanol extract by GC/MS indicated not LSD but rather DOC (not quantitated but a high loading based on the TIC)". [24] DOC is sometimes misrepresented as LSD by unscrupulous dealers. This is particularly dangerous, as DOC is not known to have the safety profile of LSD. It can be particularly unsafe, in comparison to LSD, for those suffering from hypertension, as amphetamine compounds are known to cause sharp increases in systolic blood pressure.
Listed as a Schedule 1 [25] as it is an analogue of amphetamine. [26] The CDSA was updated as a result of the Safe Streets Act changing amphetamines from Schedule 3 to Schedule 1. [27]
Unscheduled but can be controlled as schedule II as an analogue of DOB. [28]
As of October 2015 DOC is a controlled substance in China. [29]
Scheduled. [28]
Denmark added DOC to the list of Schedule I controlled substances as of 8.4.2007. [28]
Scheduled in Anlage I since 22.1.2010. [28]
Sveriges riksdag added DOC to schedule I ("substances, plant materials and fungi which normally do not have medical use") as narcotics in Sweden as of Aug 30, 2007, published by Medical Products Agency in their regulation LVFS 2007:10 listed as DOC, 4-klor-2,5-dimetoxi-amfetamin. [30] DOC was first classified by Sveriges riksdags health ministry Statens folkhälsoinstitut as "health hazard" under the act Lagen om förbud mot vissa hälsofarliga varor (translated Act on the Prohibition of Certain Goods Dangerous to Health) as of Jul 1, 2004, in their regulation SFS 2004:486 listed as 4-klor-2,5-dimetoxiamfetamin (DOC). [31]
Class A. [28]
DOC is not scheduled or controlled at the federal level in the United States, [32] but the Department of Justice considers it to be an analogue of DOB [33] and, as such, possession or sale could be prosecuted under the Federal Analogue Act. [28] In December 2023, the US Drug Enforcement Administration issued a notice of proposed rulemaking that would classify both 2,5-dimethoxy-4-chloroamphetamine and 2,5-dimethoxy-4-iodoamphetamine as schedule I controlled substances. [34]
In the United States, the analogues DMA, DOB, and DOM are Schedule I controlled substances.
DOC is a Schedule I controlled substance in the state of Florida making it illegal to buy, sell, or possess. [35]
In December 2019, the UNODC announced scheduling recommendations placing DOC into Schedule I alongside another several research chemicals. [36]
PiHKAL: A Chemical Love Story is a book by Alexander Shulgin and Ann Shulgin published in 1991. The subject of the work is psychoactive phenethylamine chemical derivatives, notably those that act as psychedelics and/or empathogen-entactogens. The main title, PiHKAL, is an acronym that stands for "Phenethylamines I Have Known and Loved".
2C-T-7 is a psychedelic phenethylamine of the 2C family. In his book PiHKAL: A Chemical Love Story, Alexander Shulgin lists the dosage range as 10–30 mg. 2C-T-7 is generally taken orally, and produces psychedelic and entactogenic effects that last 8 to 15 hours. Up until Operation Web Tryp and three deaths, two of which involved the use of other drugs in addition to 2C-T-7, and one which involved an excessive insufflated dose, 2C-T-7 was sold commercially in Dutch and Japanese smartshops and online. It is known on the streets as Blue Mystic or 7th Heaven. There has been little real research done on this chemical other than Shulgin's comments in PiHKAL and a few small animal studies mostly aimed at detecting metabolites.
2C-C is a psychedelic drug of the 2C family. It was first synthesized by Alexander Shulgin, sometimes used as an entheogen. In his book PiHKAL , Shulgin lists the dosage range as 20–40 mg. 2C-C is usually taken orally, but may also be insufflated. 2C-C is schedule I of section 202(c) of the Controlled Substances Act in the United States, signed into law as of July, 2012 under the Food and Drug Administration Safety and Innovation Act.
2,5-Dimethoxy-4-methylamphetamine (DOM), also known as STP, is a psychedelic drug of the phenethylamine, amphetamine, and DOx families. It is generally taken orally.
Dimethoxybromoamphetamine (DOB), also known as brolamfetamine and bromo-DMA, is a psychedelic drug and substituted amphetamine of the phenethylamine class of compounds. DOB was first synthesized by Alexander Shulgin in 1967. Its synthesis and effects are documented in Shulgin's book PiHKAL: A Chemical Love Story.
2,5-Dimethoxy-4-iodoamphetamine (DOI) is a psychedelic drug of the amphetamine and 4-substituted-2,5-dimethoxyamphetamine (DOx) families.
2C-P is a relatively potent and long acting psychedelic phenethylamine of the 2C family.
2,5-Dimethoxy-4-ethylamphetamine (DOET) is a psychedelic drug of the phenethylamine, amphetamine, and DOx families. It is closely related to DOM and is a synthetic analogue of the naturally occurring phenethylamine psychedelic mescaline. The drug acts as a selective agonist of the serotonin 5-HT2 receptors, including of the serotonin 5-HT2A, 5-HT2B, and 5-HT2C receptors.
2C (2C-x) is a general name for the family of psychedelic phenethylamines containing methoxy groups on the 2 and 5 positions of a benzene ring. Most of these compounds also carry lipophilic substituents at the 4 position, usually resulting in more potent and more metabolically stable and longer acting compounds.
Aleph is a psychedelic hallucinogenic drug and a substituted amphetamine of the phenethylamine class of compounds, which can be used as an entheogen. It was first synthesized by Alexander Shulgin, who named it after the first letter of the Hebrew alphabet. In his book PiHKAL, Shulgin lists the dosage range as 5–10 mg, with effects typically lasting for 6 to 8 hours.
25I-NBOMe, also known as Smiles, or N-Bomb, is a novel synthetic psychoactive substance with strong hallucinogenic properties, synthesized in 2003 for research purposes. Since 2010, it has circulated in the recreational drug scene, often misrepresented as LSD.
Substituted phenethylamines are a chemical class of organic compounds that are based upon the phenethylamine structure; the class is composed of all the derivative compounds of phenethylamine which can be formed by replacing, or substituting, one or more hydrogen atoms in the phenethylamine core structure with substituents. Phenylethylamines are also generally found to be central nervous system stimulants with many also being entactogens/empathogens, and hallucinogens.
25B-NBOMe is a derivative of the phenethylamine psychedelic 2C-B, discovered in 2004 by Ralf Heim at the Free University of Berlin. It acts as a potent full agonist for the 5HT2A receptor. Duration of effects lasts about 3–10 hours, although the parent compound is rapidly cleared from the blood when used in the radiolabeled form in tracer doses. Recently, Custodio et al. (2019) evaluated the potential involvement of dysregulated dopaminergic system, neuroadaptation, and brain wave changes which may contribute to the rewarding and reinforcing properties of 25B-NBOMe in rodents.
2,5-Dimethoxy-4-fluoroamphetamine (DOF) is a psychedelic drug of the phenethylamine and amphetamine classes. Alexander Shulgin briefly describes DOF in his book PiHKAL:
Animal studies that have compared DOF to the highly potent DOI and DOB imply that the human activity will be some four to six times less than these two heavier halide analogues.
4-Substituted-2,5-dimethoxyamphetamines (DOx) is a chemical class of substituted amphetamine derivatives featuring methoxy groups at the 2- and 5- positions of the phenyl ring, and a substituent such as alkyl or halogen at the 4- position of the phenyl ring. They are 4-substituted derivatives of 2,5-dimethoxyamphetamine and are structurally related to the naturally occurring phenethylamine psychedelic mescaline.
25C-NBOMe is a psychedelic drug and derivative of the psychedelic phenethylamine 2C-C. 25C-NBOMe appeared on online vendor sites in 2010 but was not reported in the literature until 2011. It acts as a potent agonist of the 5-HT2A receptor, and has been studied in its 11C radiolabelled form as a potential ligand for mapping the distribution of 5-HT2A receptors in the brain, using positron emission tomography (PET). Multiple deaths have occurred from usage of 25C-NBOMe due to the ease of accidental overdose. The long-term toxic effects of the drug have not been researched.
25D-NBOMe is a derivative of the phenethylamine derived hallucinogen 2C-D. It acts in a similar manner to related compounds such as 25I-NBOMe, which is a potent agonist at the 5-HT2A receptor. 25D-NBOMe has been sold as a street drug since 2010 and produces similar effects in humans to related compounds such as 25I-NBOMe and 25C-NBOMe. It was banned as a Temporary Class Drug in the UK on 10 June 2013 after concerns about its recreational use.
25N-NBOMe is a derivative of the hallucinogen 2C-N. The pharmacological properties of 25N-NBOMe have not been described in the scientific literature, but it is believed to act in a similar manner to related compounds such as 25I-NBOMe and 25C-NBOMe, which are potent agonists at the 5HT2A receptor. 25N-NBOMe has been sold as a street drug and has only been described in the literature in terms of identification by forensic analysis.
25H-NBOMe (NBOMe-2C-H) is a derivative of the phenethylamine hallucinogen 2C-H, which acts as a highly potent full agonist for the human 5-HT2A receptor.
The 25-NB (25x-NBx) series, or NBOMe series, also known as the N-benzylphenethylamines, is a family of serotonergic psychedelics. They are substituted phenethylamines and were derived from the 2C family. The most commonly encountered NBOMe drugs are 25I-NBOMe, 25B-NBOMe, and 25C-NBOMe.
Despite the reasonably constant recreational use of hallucinogens since at least the early 1970s [44], the reinforcing effects of hallucinogens have not been widely investigated in laboratory animals. Indeed, one of the earliest studies on the reinforcing effects of drugs using the intravenous self-administration procedure in rhesus monkeys found that no animal initiated self-injection of mescaline either spontaneously or after one month of programmed administration [45]. Likewise, the phenethylamine hallucinogen 2,5-dimethoxy-4-methylamphetamine (DOM) was not effective in maintaining self-administration in rhesus monkeys [46]. Nevertheless, the hallucinogen-like phenethylamine 3,4-methylenedioxymethamphetamine (MDMA) has been shown to act as a reinforcer in intravenous self-administration paradigms in baboons [47], rhesus monkeys [48 – 50], rats [51] and mice [52].
One of the earliest studies on the reinforcing effects of drugs using the intravenous self-administration procedure in rhesus monkeys found that no animal initiated self-injection of mescaline either spontaneously or after one month of programmed administration, [...] (Deneau et al., 1969). The lack of mescaline self-administration stood in contrast to positive findings of self-administration of morphine, codeine, cocaine, amphetamine, pentobarbital, ethanol, and caffeine. A subsequent study with rhesus monkeys using 2,5-dimethoxy-4-methylamphetamine (DOM; Yanagita, 1986) provided similar results as the mescaline study. These findings have withstood the test of time, as the primary literature is virtually devoid of any accounts of self-administration of [classical hallucinogens (CH)], suggesting that there are very limited conditions under which laboratory animals voluntarily consume CH.