1-Deamino-4-(2-aminobutyric acid)-8-arginine vasopressin 25857-49-2 25953-03-1 Dabuavp Vasopressin, 1-(3-mercaptopropanoic acid)-4-(L-2-aminobutanoic acid)-8-L-arginine- Vasopressin, 1-deamino-4-(2-aminobutyric acid)-8-arg-