Disodium (R,R)-5-2-[[2-(3-chlorophenyl)-2-hydroxyethylamino]propyl]-1,3-benzodioxole-2,2-dicarboxylate (CL 316,243). A potent .beta.-adrenergic agonist virtually specific for .beta.3 receptors. A promising antidiabetic and antiobesity agent | Synapse