A mixed antagonist at dopamine D2, D3, and serotonin 5-HT2A receptors (Kis = 0.14, 0.49, and 0.81 nM, respectively) that also binds to 5-HT6 (Ki = 11.7 nM); developed as a novel antipsychotic that displays 20- and 94-fold higher affinity for D2 receptors compared to haloperidol and risperidone, respectively