CS-003 free base (CS-003) is a triple tachykinin receptor antagonist with high affinity for human (neurokinin) NK1, NK2 and NK3 receptors, with Ki values of 2.3 nM and 0.54 nM, respectively And 0.74 nM. CS-003 free base (CS-003) has therapeutic effects on
Hemokinin 1 (mouse) is a selective excitogen 1 receptor agonist with Ki values of 0.175 nM for the humanNK1 receptor and 560 nM for the humanNK2 receptor.