[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][Branch1][N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][C][=N][C][C][N][Ring1][Branch1].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of tetrahydrozoline, an imidazole derivative with sympathomimetic property. Applied locally to the eye or nose, tetrahydrozoline binds to and activates alpha-adrenergic receptors, resulting in vasoconstriction and decreased nasal and ophthalmic congestion."}]