First synthesized by Albert Hofmann in 1963, 4-AcO-copyright, or O-Acetylpsilocin, is a semi-synthetic derivative of psilocin. It is structurally similar to the naturally occurring alkaloid found in psilocybin mushrooms, differing only by the presence of an acetoxy group. Due to its close relationship with other tryptamines, it has been studied in the field of forensic and analytical chemistry for its chemical behavior and stability. Buy 4 AcO copyright today!


Chemical Name:4-Acetoxy-N,N-dimethyltryptamine
Formula: C₁₄H₁₈N₂O₂
Molar 4 aco copyright fumarate Mass: 246.310 g·mol⁻¹
IUPAC: 3-[2-(Dimethylamino)ethyl]-1H-indol–4-yl acetate
Form: Fumarate



⚠️ Safety Precaution:
This product is for research and forensic applications 4 aco copyright fumarate only. Not for human or 4 aco copyright side effects veterinary use. Handle according to appropriate 4 aco copyright fumarate safety protocols.