4-HO-AET, or 4-HO-ñET, also known as 4-hydroxy-ñ-ethyltryptamine, is a psychoactive drug of the tryptamine and ñ-alkyltryptamine families related to ñ-ethyltryptamine (ÃÂÃÂä or ñET). It has been encountered as a novel designer drug of interest on online drug discussion forums.
Analogues of 4-HO-AET include ñ-ethyltryptamine, 4-HO-AMT, ñ-methylserotonin (5-HO-AMT), 5-MeO-AMT, 4-methyl-AMT, 5-fluoro-AET, and 5-chloro-AET, among others.