5-MeO-DMT Powder (Freebase) for sale 5-MeO-DMT Powder (Freebase) is a research chemical belonging to the tryptamine class, known for its potent effects on the brain and behavior. The IUPAC name for 5-MeO-DMT is 5-Methoxy-N,N-dimethyltryptamine, and its CAS number is 1019-45-0. In its powder form, 5-MeO-DMT appears as a fine white or off-white powder with a high level of purity, typically 98.0% or higher. This compound is highly sought after by researchers studying the effects of tryptamines on the brain and behavior due to its unique properties.