4-HO-MALT
4-HO-MALT, also known as 4-hydroxy-N-methyl-N-allyltryptamine or as maltocin, is a tryptamine derivative related to 4-HO-DALT which has been sold as a designer drug, first being detected in Slovenia in 2020.Use and effects
4-HO-MALT was not included nor mentioned in Alexander Shulgin's book TiHKAL. However, it has subsequently emerged as a novel designer drug. It is said to have a dose of 10 to 40mg orally, with its effects including mild stimulation and visual changes.Interactions
Pharmacology
Pharmacodynamics
4-HO-MALT acts as an agonist of the serotonin 5-HT2A, 5-HT2B, and 5-HT2C receptors. It also interacts with other serotonin receptors. The drug produces the head-twitch response, a behavioral proxy of psychedelic effects, in rodents.Chemistry
Analogues
s of 4-HO-MALT include methylallyltryptamine, 4-AcO-MALT, 5-MeO-MALT, 4-HO-DALT, 4-AcO-DALT, 4-HO-NALT, 4-HO-MiPT, 4-HO-McPT, and 4-HO-MPT, among others.History
4-HO-MALT was encountered online as a novel designer drug in 2018 and 2019. Subsequently, it was detected in Slovenia in 2020.Legal status
4-HO-MALT is not a controlled substance in Canada as of 2025.