BAY 58-2667 Hydrochloride. A guanylyl cyclase activator, Synonyms:-4-((4-carboxybutyl)(2-((4-phenethylbenzol)- oxy)phenethyl)amino)methyl(benzoic) acid; BAY582667; cinaciguat, CAS Number:-1240669-95-7, Molecular Formula:-CG6HG9NOG.HCl, Purity:-G98% by NMR, 1mg.