d[Cha4]-AVP from MedChemExpress

d[Cha4]-AVP is a potent and selective vasopressin (AVP) V1b receptor agonist with a Ki of 1.2 nM for human V1b receptor. d[Cha4]-AVP shows more selective for V1b receptor than human V1a receptor, V2 receptor, and oxytocin receptors[1][2]