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Baeocystin: Wikis


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Systematic (IUPAC) name
3-[2-(methylammonio)ethyl]-1H-indol-4-yl hydrogen phosphate
CAS number  ?
ATC code none
PubChem 161359
ChemSpider 141741
Chemical data
Formula C 11H15N2O4P 
Mol. mass 270.222 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.  ?
Legal status Schedule III (CA) Class A (UK)
Routes Oral
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Baeocystin is a mushroom alkaloid and analog of the psychedelic hallucinogenic drug psilocybin, a tryptamine derivative. It is found as a minor compound in most psychoactive mushrooms together with psilocybin, norbaeocystin, and psilocin. Little information exists with regard to human pharmacology, but in Magic Mushrooms Around the World, Jochen Gartz reports being aware of a study in which "10 mg of baeocystin were found to be about as psychoactive as a similar amount of psilocybin."

First isolated from the mushroom Psilocybe baeocystis,[1] and later from P. semilanceata (Repke & Leslie 1977) and first synthesized by Troxler et al. (1959) Baeocystin is a demethylated derivative of psilocybin.


  1. ^ Leung, A.Y. and A.G. Paul. "Baeocystin and Norbaeocystin: New Analogs of Psilocybin from Psilocybe baeocystis." Journal of Pharmaceutical Sciences 57(10): 1667-1671 (1968).
  • DB Repke, DT Leslie, G Guzman. "Baeocystin in Psilocybe, Conocybe and Panaeolus." Lloydia. 1977 Nov-Dec;40(6):566-78.


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