4749-61-5

ST 91 is an a2B-adrenoceptor agonist.

α 2 -adrenoceptor agonist that does not cross the blood brain barrier. Displays ~ 120-fold selectivity for α 2 receptors over α 1 receptors and acts predominantly at non- α 2A -adrenoceptors which may be of the α 2C subtype. Antinociceptive; increases tail-flick latencies in Sasco and Harlan rats.