Guanylin, human Description An endogenous activator of intestinal guanylate cyclase. Specifications Cas No. 145319-90-0 Product ID G8103 Product Name Guanylin, human Formula Wt. 1458.68 Store Temp +4oC References Wiegand RC, Kato J, Currie MG. Biochem Biophys Res Commun. 185:812-817(1992).