Used as a potent and selective agonist for P2X receptors, particularly P2X1 and P2X3 subtypes, in pharmacological research. It is widely employed to study purinergic signaling pathways, especially in investigations related to pain transmission, neurotransmission, and muscle contraction. Due to its resistance to enzymatic degradation, it produces prolonged receptor activation, making it ideal for electrophysiological and calcium imaging studies. Commonly used in in vitro models to evoke ion channel responses and assess receptor desensitization kinetics.