OrexinReceptor Antagonist 2 (compound 30), characterized by its potent antagonistic activity with pKis of 7.69 and 9.78, holds promise for insomnia research[1].
Potent and selective peptide orexin OX1 receptor agonist (EC50 values are 8.29 and 187 nM for OX1 and OX2 receptors respectively). Truncated form of orexin A.