5-TOET, also known as 2-methoxy-4-ethyl-5-methylthioamphetamine or as 5-thio-DOET, is a psychedelic drug of the phenethylamine and amphetamine families related to the DOx psychedelic DOET.[1][3][4][2] It is the analogue of DOET in which the methoxy group at the 5 position has been replaced with a methylthio group.[1][3][4][2] The drug is one of two possible TOET (thio-DOET) positional isomers, the other being 2-TOET.[1][3][4][2]
In his book PiHKAL (Phenethylamines I Have Known and Loved) and other publications, Alexander Shulgin lists 5-TOET's dose as 12 to 25 mg orally and its duration as 8 to 24 hours.[1][3][2] Its onset is about 30 minutes and its time to peak is about 4 hours.[2] The drug is around 5-fold less potent than DOET, which has a listed dose range of 2 to 6 mg orally.[1][4]
The effects of 5-TOET have been reported to include closed-eye imagery and fantasy, open-eye visuals such as brightness around objects and visual movement, feelings of joy, beauty, love, and serenity, erotic enhancement, restlessness, lightheadedness, pupil dilation, sleep disturbances, and next-day afterglow as well as lethargy.[1][2] One user described it as "superb", "exquisite", and potentially "extraordinary".[1] It has much less physical discomfort than 5-TOM.[1][2] There also appears to be significant interindividual variability in intensity of 5-TOET, with two of eight people being roughly twice as sensitive as the others.[1][2] In addition, an unintentional overdose in one person, despite a similar dose taken as others, was described as intense, exhausting, and too long-lived.[1]
The chemical synthesis of 5-TOET has been described.[1][2] The phenethylamine analogue, 2C-5-TOET (5-thio-2C-E), has been synthesized, but was not tested and its properties are unknown.[1]
5-TOET was first described in the scientific literature by Alexander Shulgin and Peyton Jacob III in 1983.[2] Subsequently, it was described in greater detail by Shulgin in PiHKAL in 1991.[1]
See also
References
- ^ a b c d e f g h i j k l m n o Shulgin, Alexander; Shulgin, Ann (September 1991). PiHKAL: A Chemical Love Story. Berkeley, California: Transform Press. ISBN 0-9630096-0-5. OCLC 25627628. https://www.erowid.org/library/books_online/pihkal/pihkal170.shtml
- ^ a b c d e f g h i j k l Jacob P, Shulgin AT (May 1983). "Sulfur analogues of psychotomimetic agents. 2. Analogues of (2,5-dimethoxy-4-methylphenyl)-and (2,5-dimethoxy-4-ethylphenyl)isopropylamine". J Med Chem. 26 (5): 746–752. doi:10.1021/jm00359a021. PMID 6842515.
- ^ a b c d Shulgin AT (2003). "Basic Pharmacology and Effects". In Laing RR (ed.). Hallucinogens: A Forensic Drug Handbook. Forensic Drug Handbook Series. Elsevier Science. pp. 67–137. ISBN 978-0-12-433951-4. Archived from the original on 13 July 2025.
- ^ a b c d Nichols DE (1994). "Medicinal Chemistry and Structure-Activity Relationships". In Cho AK, Segal DS (eds.). Amphetamine and Its Analogs: Psychopharmacology, Toxicology, and Abuse. Academic Press. pp. 3–41. ISBN 978-0-12-173375-9.
Biological activity is low in compounds in which the oxygen atom of either the 2- or the 5-methoxy group has been replaced with a sulfur, illustrating the difficulty in developing bioisosteres of the 2,5-dimethoxy-substituted aromatic nucleus. However, if relative importance were assigned to the two methoxy groups, the 2-methoxy group would appear to be more, critical for optimal activity (Jacob et al., 1977). For example, referring to Table l, when the 2-methoxy group of DOEt is replaced with a methylthio group, in vivo activity is reduced by more than one order of magnitude (Jacob and Shulgin, 1983; Shulgin and Shulgin, 1991). However, the replacement of the 5-methoxy oxygen with a sulfur reduces activity only 4- to 6-fold. Similarly, when the 2-methoxy group of DOM is replaced with a methylthio group, activity drops by a factor of 10–20, whereas similar replacement of the 5-methoxy only reduces activity 5- to 10-fold (Jacob et al., 1977; Shulgin and Shulgin, 1991).
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- PMA (4-MA)
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- (e.g., TMA-3, TMA-4, TMA-5)
- ZDCM-04 (DOC-fenethylline)
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- 1-Aminomethylindanes (e.g., 2CB-Ind, jimscaline)
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- Z3517967757
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| Natural sources |
- Tryptamines: Acacia spp. (e.g., Acacia acuminata, Acacia confusa)
- Ayahuasca and vinho de Jurema (e.g., Psychotria viridis (chacruna), Dipolopterys cabrerana (chaliponga, chacruna), Mimosa tenuiflora (Mimosa hostilis; jurema))
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- Ergot (Claviceps) (e.g., Claviceps purpurea, Claviceps paspali)
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- Periglandula spp. (e.g., Periglandula ipomoeae, Periglandula clandestina)
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- See also: Hallucinogens
- Entactogens
- Tryptamines
- Phenethylamines
- Ergolines and lysergamides
- Serotonin receptor modulators
- List of psychedelic drugs
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Phenylisobutylamines (and further-extended) | |
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Catecholamines (and close relatives) | |
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Cyclized phenethylamines | | Phenylalkylpyrrolidines | |
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2-Benzylpiperidines (phenidates) | |
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Phenylmorpholines (phenmetrazines) | |
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Phenyloxazolamines (aminorexes) | |
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Isoquinolines and tetrahydroisoquinolines | |
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| 2-Aminoindanes | |
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| 2-Aminotetralins | |
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| Others / unsorted |
- 1-Aminomethylindanes (e.g., 2CB-Ind, AMMI, bromojimscaline, jimscaline)
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- 6-AB
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- PF-592,379
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- Tolazoline
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| Related compounds |
- 2-Furylethylamine
- 2-Pyrrolylethylamine
- 3-Pyrrolylethylamine
- 3-Pyrrolylpropylamine
- 2-Tetrahydrofurylethylamine
- 4-Benzylpiperidine
- 7-AB
- Alkylamines (e.g., 1,3-DMBATooltip 1,3-dimethylbutylamine, 1,4-DMAATooltip 1,4-dimethylamylamine, heptaminol, iproheptine, isometheptene, methylhexanamine/1,3-DMAA, octodrine, oenethyl, tuaminoheptane)
- Benzylamines (e.g., benzylamine, α-methylbenzylamine, MDM1EA, ALPHA, M-ALPHA, pargyline)
- Benzylpiperazines (e.g., benzylpiperazine, MDBZP, fipexide)
- Cyclohexylaminopropanes (e.g., propylhexedrine, norpropylhexedrine)
- Cyclopentylaminopropanes (e.g., isocyclamine, cyclopentamine)
- Phenoxyethylamines (e.g., 3,4,5-trimethoxyphenoxyethylamine, CT-4719, ORG-37684)
- Phenylalkenylamines (e.g., phenylbutenamine)
- Phenylalkynylamines (e.g., phenylbutynamine)
- Phenylpiperazines (e.g., 1-phenylpiperazine, mCPPTooltip meta-chlorophenylpiperazine, TFMPPTooltip trifluoromethylphenylpiperazine, oMPPTooltip ortho-methylphenylpiperazine, pFPPTooltip para-fluorophenylpiperazine, pMeOPPTooltip para-methoxyphenylpiperazine)
- Phenylpropylamines (e.g., phenylpropylamine, homo-MDA, homo-MDMA)
- Thienylaminopropanes (thiopropamines) (e.g., thiopropamine, methiopropamine, thiothinone)
- Phenylbutylamines (e.g., 4-Phenylbutylamine, 4-Phenylpentan-1-amine)
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- See also: Tryptamines
- Ergolines and lysergamides
- Stimulants
- Entactogens
- Psychedelics
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