Auriculin B (ANP (126-150) (Rat)) is a rat-derived atrial natriuretic peptide. Auriculin B has potent vasodilatory and diuretic properties[1].
References
[1] Atlas SA, Laragh JH. Atrial natriuretic peptide: a new factor in hormonal control of blood pressure and electrolyte homeostasis. Annu Rev Med. 1986;37:397-414. DOI:10.1146/annurev.me.37.020186.002145