(-)-Quinpirole HCl [(-)-LY 171555] is a highly potent psychoactive drug and research chemical which acts as a high affinity and selective D2 and D3 receptor agonist. It is used in scientific research.
Quinpirole has been shown to increase locomotion and sniffing behavior
in mice treated with it. It is the most widely used D2 agonist in in vivo and in vitro studies.