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Chemical name2-(4-isopropoxy-3,5-dimethoxyphenyl)ethanamine
Chemical formulaC13H21NO3
Molecular mass??
Melting point163-164 °C hydrochloride
CAS numbers64778-72-9

Isoproscaline (or 4-(i)-propyl-3,5-dimethoxyphenethylamine) is an analogue of mescaline. It is closely related to proscaline and was first synthesized by David E. Nichols. It produces hallucinogenic, psychedelic, and entheogenic effects.


Isoproscaline is in a class of compounds commonly known as phenethylamines, and the full chemical name is 2-(4-isopropoxy-3,5-dimethoxyphenyl)ethanamine.


Little is known about the psychopharmacological effects of isoproscaline. Shulgin lists a psychedelic dosage as being 40-80 mg, with effects lasting 12-18 hours.


The mechanism that produces the hallucinogenic and entheogenic effects of isoproscaline is most likely to result from action as a 5-HT2A serotonin receptor agonist in the brain, a mechanism of action shared by all of the hallucinogenic tryptamines and phenethylamines.


The toxicity of isoproscaline is not known.


Isoproscaline is unscheduled and unregulated in the United States, however because of its close similarity in structure and effects to mescaline, possession and sale of isoproscaline may be subject to prosecution under the Federal Analog Act.

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