[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][O][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][NH1+1][Branch1][Ring2][C][C][Cl][C][C][=C][C][=C][C][=C][Ring1][=Branch1].[Cl-1]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of phenoxybenzamine, a synthetic, dibenzamine alpha-adrenergic antagonist with antihypertensive and vasodilatory properties. Phenoxybenzamine non-selectively and irreversibly blocks the postsynaptic alpha-adrenergic receptor in smooth muscle, thereby preventing vasoconstriction, relieving vasospasms, and decreasing peripheral resistance. Reflex tachycardia may occur and may be enhanced by blockade of alpha-2 receptors which enhances norepinephrine release. Phenoxybenzamine is reasonably anticipated to be a human carcinogen."}]