KMUP-1 is a xanthine derivative known for its vasodilatory properties. It functions as a phosphodiesterase (PDE) inhibitor and an activator of soluble guanylate cyclase (sGC), engaging the NO/sGC/cyclic guanosine monophosphate pathway. Additionally, KMUP-1 can open K+ channels and has the potential to alleviate ischemia-induced cardiac myocyte apoptosis (apoptosis). This compound is useful in cardiovascular and anti-inflammatory research.