| Clinical data | |
|---|---|
| Other names | ME; 3-Ethoxy-4,5-dimethoxyphenethylamine; 3,4-Dimethoxy-5-ethoxyphenethylamine |
| Routes of administration | Oral[1] |
| Drug class | Serotonergic psychedelic; Hallucinogen |
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| Pharmacokinetic data | |
| Onset of action | 0.5–1.5 hours[1] |
| Duration of action | 8–12 hours[1] |
| Identifiers | |
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| CAS Number | |
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| CompTox Dashboard (EPA) | |
| Chemical and physical data | |
| Formula | C12H19NO3 |
| Molar mass | 225.288 g·mol−1 |
| 3D model (JSmol) | |
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Metaescaline (ME), also known as 3-ethoxy-4,5-dimethoxyphenethylamine, is a psychedelic drug of the phenethylamine and scaline families related to mescaline.[1] It is the analogue of mescaline in which the methoxy group at the 3 position has been replaced with an ethoxy group.[1] The drug is also the positional isomer of escaline in which the methoxy group at the 3 (meta) position and the ethoxy group at the 4 position have been interchanged.[1]
Use and effects
In his book PiHKAL (Phenethylamines I Have Known and Loved), Alexander Shulgin lists metaescaline's dose as 200 to 350 mg orally and its duration as 8 to 12 hours.[1] Its onset was described as slow and ranged from 0.5 to 1.5 hours.[1] The drug's potency is similar to that of mescaline.[1][2]
The effects of metaescaline were reported to include brightening of colors, mildly heightened visual awareness and quite heightened auditory awareness, no closed-eye imagery to significant closed-eye visuals, visual distortions such as walls dissolving, thinking changes, associative thinking, introspection, and insights.[1] Other effects included a "marvelous feeling inside", euphoria, feeling energetic, easy talking and talkativeness, relaxation, disinhibition, feeling connected and bonded with others, and subjective effects being more based in feelings than cognitive.[1] No hangover was reported.[1] It was said that no one was reluctant to repeat the experience.[1] Alcohol was reported to potentiate or rekindle the effects of metaescaline in a TOMSO-like manner in one report.[1]
Metaescaline was variously described as a "sterner mescaline" and as "not dramatic like some psychedelics".[1] Unlike mescaline or peyote, there was little body discomfort, no nausea, and only occasional hyperreflexia.[1] In addition, metaescaline was said to have less exaggeration of color perception than mescaline and that music was associated with little imagery in contrast to mescaline.[1] The transference characteristic of MDMA were said to be basically absent, but it was felt that metaescaline might nonetheless be useful for psychedelic-assisted psychotherapy purposes.[1]
Interactions
Chemistry
Synthesis
The chemical synthesis of metaescaline has been described.[1]
Analogues
Analogues of metaescaline include mescaline, escaline, metaproscaline, asymbescaline, symbescaline, and trisescaline (trescaline), among others.[1]
History
Metaescaline was mentioned in the literature by Abram Hoffer and Humphrey Osmond in their 1967 book The Hallucinogens.[3] It was subsequently described by Alexander Shulgin and Peyton Jacob III in 1984.[2] Following this, metaescaline was described in greater detail by Shulgin in his 1991 book PiHKAL (Phenethylamines I Have Known and Loved).[1]
See also
References
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Shulgin A, Shulgin A (September 1991). PiHKAL: A Chemical Love Story. Berkeley, California: Transform Press. ISBN 0-9630096-0-5. OCLC 25627628. "Metaescaline entry".
- 1 2 Jacob P, Shulgin AT (July 1984). "Sulfur analogues of psychotomimetic agents. 3. Ethyl homologues of mescaline and their monothio analogues". Journal of Medicinal Chemistry. 27 (7): 881–888. doi:10.1021/jm00373a013. PMID 6737431.
- ↑ Hoffer A, Osmond H (1967). The Hallucinogens. Academic Press. ISBN 978-0-12-351850-7. Retrieved 29 November 2025.