4-AcO-MiPT, also known as 4-acetoxy-N-methyl-N-isopropyltryptamine or as mipracetin, is a psychedelic tryptamine. It is closely related to 4-AcO-DMT and methylisopropyltryptamine (MiPT).
There is very little information on the human pharmacology or toxicity of 4-AcO-MiPT, although analytical methods have been developed for its detection.
Analogues of 4-AcO-MiPT include methylisopropyltryptamine (MiPT), 4-HO-MiPT (miprocin), 5-MeO-MiPT, 4-AcO-DMT (psilacetin), 4-AcO-MET (metacetin), 4-AcO-MPT, 4-AcO-MALT, and 4-AcO-DiPT (ipracetin), among others.
4-AcO-MiPT is not a controlled substance in Canada as of 2025.
Sveriges riksdags health ministry classified 4-AcO-MiPT as "health hazard" under the act (translated Act on the Prohibition of Certain Goods Dangerous to Health) as of Nov 1, 2005, in their regulation SFS 2005:733 listed as 4-acetoxi-N,N-metylisopropyltryptamin (4-AcO-MIPT), making it illegal to sell or possess.
4-AcO-MiPT is not an explicitly controlled substance in the United States. However, it could be considered a controlled substance under the Federal Analogue Act if intended for human consumption.