Used primarily in scientific research to study beta-adrenergic receptors due to its high affinity and selectivity as a beta-blocker. It is valuable in radioligand binding assays, often labeled with iodine-125, to quantify receptor density and analyze receptor binding characteristics in tissues. Also employed in pharmacological studies investigating cardiovascular function, signal transduction pathways, and the effects of beta-receptor antagonism. Its lipophilic nature allows it to cross cell membranes easily, making it suitable for both in vitro and in vivo experiments.