HXE Powder for sale HXE Powder is a research chemical belonging to the dissociative anesthetic class. The IUPAC name for HXE is 3-Hydroxyeticyclidine, and its CAS number is 91164-58-8. In its powder form, HXE appears as a fine white or off-white powder with a high level of purity, typically 98.0% or higher. This research chemical is highly sought after by scientists and researchers studying the effects of dissociatives on the brain and behavior due to its potent and unique properties. HXE is structurally similar to other popular research chemicals such as Ketamine and PCP, and it has been used in studies exploring the effects of these compounds on the brain and behavior.