Sp-cAMPS is widely used in biochemical and pharmacological research as a potent and specific activator of cyclic AMP-dependent protein kinase (PKA). It mimics the action of cyclic AMP, enabling scientists to study the downstream effects of PKA activation in various cellular processes. This compound is particularly valuable in investigating signal transduction pathways, gene expression regulation, and cellular responses to hormonal stimuli. Additionally, Sp-cAMPS is utilized in studies focusing on cardiac function, neuronal signaling, and metabolic regulation, providing insights into the role of PKA in these systems. Its ability to selectively activate PKA makes it a crucial tool for understanding the molecular mechanisms underlying physiological and pathological conditions.