Atriopeptin I Description A biologically active petide isolated from mammalian cardiac atria. A natriuretic and diuretic peptide that selectively relaxes intestinal but not vascular smooth muscle strips. Specifications Product ID A7670 Product Name Atriopeptin I Formula Wt. 2083.31 Store Temp +4oC References Currie et. al. Science. 223:67-69 (1984)