Description_x000D_ Packaging_x000D_ 10, 50 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ LP44 is a high affinity 5-HT7 receptor agonist. Ki = 0.22 nM. LP44 displays selectivity over 5-HT1A and 5-HT2A receptors (200- and >1000-fold, respectively). LP44 induces relaxation of substance P-stimulated guinea pig ileum (EC50 = 2.56 μM)._x000D_ Features and Benefits_x000D_ This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more._x000D_ Legal Information_x000D_ LOPAC is a registered trademark of Sigma-Aldrich Co. LLC