[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][C][C][N][C][C][Branch1][P][C][O][C][=C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2][O]"}, {"from": "gpt", "value": "The molecule is a racemic mixture of 2 enantiomers where the S(-)-enantiomer has approximately 100 times the binding affinity for beta adrenergic receptors. Propranolol is used to treat a number of conditions but most commonly is used for hypertension.   Propranolol was granted FDA approval on 13 November 1967."}]