[{"from": "human", "value": "Describe this molecule. [C][C][O][C][=Branch1][C][=O][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][S][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][N][C][=Branch1][C][=O][C][C][N][C][C][O][C][C][Ring1][=Branch1].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of moricizine, a phenothiazine analog with class I antiarrhythmic activity. Moricizine hydrochloride blocks the rapid flow of sodium ions into the myocardial cell during phase 0 of the action potential. This decreases excitability, slows the impulse conduction through the atrioventricular (AV) node and depresses depolarization."}]