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Tryptamines. 4-AcO-DMT.

4-AcO-DMT, aka O-acetylpsilocin, is a novel tryptamine discovered by Albert Hoffman in the 1950s. It is an O-acetate ester of psilocin. It is closely related to psilocin and psilocybin. It is essentially the same molecule as psilocybin, but the phosphate group is replaced with an acetate group. Both hydrolyze readily into psilocin, the centrally active compound which elicits psychedelic effects by binding to the serotonin receptors.

Our batch of 4-AcO-DMT was confirmed to be authentic and near 100% purity in a paper published by the University of Massachusetts (Chadeayne et al.).

This product is NOT intended for human consumption, and is strictly for laboratory reagent or forensic analysis purposes ONLY. Available as the fumarate salt.

All prices are listed in Canadian dollars.


Chadeayne, Andrew R., et al. “Bis(4-Acetoxy-N,N-Dimethyltryptammonium) Fumarate: a New Crystalline Form of Psilacetin, an Alternative to Psilocybin as a Psilocin Prodrug.”

Purity Analysis

92292-84-7 HNMR(1)


Please refer to the attached MSDS (Material Safety Data Sheet) for instructions on safely handling 4-AcO-DMT.