255713-53-2

A-123189 is a novel, selective and potent alpha1D antagonist.

A-123189 is a selective and potent α1D antagonist with Kis of 0.312 and 0.17 for human α1D and rat α1D, respectively. A-123189 displays selectivities between 10- to 20-fold for the α1D receptor over the human α1A and rat α1A receptors[1].

[1] K P Briski, et al. Antagonism of type II, but not type I glucocorticoid receptors results in elevated basal luteinizing hormone release in male rats. Bioorganic & Medicinal Chemistry Letters, Volume 11, Issue 9, 7 May 2001, Pages 1119-1121.