FSCPX is primarily utilized in research settings to study adenosine receptors, particularly the A1 subtype. It acts as an irreversible antagonist, making it a valuable tool for investigating the physiological roles of these receptors in various tissues. Researchers use FSCPX to block A1 receptors selectively, allowing them to explore their involvement in processes such as cardiac function, neurotransmission, and metabolic regulation. Its irreversible binding property ensures long-lasting effects, which is advantageous in experimental designs requiring sustained receptor inhibition. Additionally, FSCPX helps in understanding the therapeutic potential of modulating adenosine receptors in conditions like heart disease, neurological disorders, and inflammation.