C-Type Natriuretic Peptide (1-22), human Description C-type natriuretic peptide (CNP) is a peptide produced by the vascular endothelium with vasodilative properties. CNP was found to play an important role in linear growth and is believed to be an endothelium-derived hyperpolarizing factor. Specifications Product ID C7997 Product Name C-Type Natriuretic Peptide (1-22), human Formula Wt. 2197.64 Store Temp +4oC References Sandow, S. L.; Tare, M. Trends Pharmacol. Sci. 28:61-7 (2007). Olney, R. C. Growth Horm. IGF Res. A:S6-14 (2006).