Used as a cell-permeable analog of cGMP, this compound activates cGMP-dependent protein kinases (PKG) in cellular signaling studies. It is widely applied in research to investigate pathways involving nitric oxide, vasodilation, and neuronal signaling. Commonly used in pharmacology and molecular biology to mimic endogenous cGMP effects, it helps study smooth muscle relaxation, platelet aggregation, and synaptic transmission. Its stability and sodium salt form enhance solubility and cellular uptake, making it suitable for in vitro and in vivo experiments.