[{"from": "human", "value": "Describe this molecule. [C][C][N][=C][Branch1][Ring2][N][Ring1][Branch1][C][C][=C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of naphazoline, an imidazole derivative and a direct-acting sympathomimetic amine with vasoconstrictive properties. Upon ocular administration, naphazoline hydrochloride exerts its effect by acting on alpha-adrenergic receptors in the arterioles of the conjunctiva to produce vasoconstriction, resulting in decreased conjunctival congestion and diminished itching, irritation and redness."}]