2-Bromo-LSD D-Tartrate is a blood-brain barrier-permeable 5-HT2A partial agonist and competitive partial antagonist. 2-Bromo-LSD D-Tartrate acts as both a potent partial agonist (with an EC50 of 0.81 nM for Gq dissociation) and a potent partial antagonist (with a KB of 0.18 nM for Gq dissociation) at the 5-HT2A receptor. 2-Bromo-LSD D-Tartrate exhibits partial agonist activity at multiple aminergic GPCRs, including 5-HT2A. 2-Bromo-LSD D-Tartrate lacks 5-HT2B agonist activity. 2-Bromo-LSD D-Tartrate induces dendritogenesis and spinogenesis. 2-Bromo-LSD D-Tartrate reverses the behavioral effects of chronic stress and increases active coping behaviors in mice.
