4-AcO-DALT hydrochloride is a psychoactive tryptamine compound. It acts as an inhibitor of multiple receptors, including 5-HT receptors, α receptors, dopamine receptors (dopamine receptors), histamine receptor 1 (H1), muscarinic M2 receptor (muscarinic M2 receptor), and Sigma 2 receptor. The compound exhibits Ki values for various receptors: 582 nM for 5-HT1B, 2689 nM for 5-HT1D, 2099 nM for 5-HT1E, 2116 nM for 5-HT2A, 958 nM for 5-HT2B, 137 nM for 5-HT2C, 824 nM for 5-HT6, 479 nM for 5-HT7A, 406 nM for H1, 874 nM for Sigma 2, 4190 nM for α2A, 482 nM for α2B, 214 nM for α2C, 803 nM for D2, 4522 nM for D3, and 1907 nM for D3.