[{"from": "human", "value": "Describe this molecule. [C][C][Branch1][C][C][N][C][C][Branch1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl][O].[O].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of clorprenaline, a beta-2 adrenergic agonist with bronchodilator activity. Clorprenaline selectively binds to and activates beta-2 adrenergic receptors in bronchiolar smooth muscle, thereby causing stimulation of adenyl cyclase, the enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3',5'-adenosine monophosphate (cAMP). Increased intracellular cAMP levels cause relaxation of bronchial smooth muscle. This increases air flow and prevents bronchospasms and may eventually lead to an improvement of airway function."}]