Brexpiprazole S-oxide (DM-3411), a primary metabolite of Brexpiprazole, acts as a partial agonist of human 5-HT1A and dopamine receptors with Ki values of 0.12 nM and 0.3 nM, respectively.
Brexpiprazole S-oxide D8 (DM-3411 D8) is a deuterium-labeled Brexpiprazole S-oxide, the primary metabolite of Brexpiprazole, which is a partial agonist of human 5-HT1A and dopamine receptors (Kis: 0.12 nM and 0.3 nM).