[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][C][C][=C][Ring1][=Branch1][C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][Cl][Cl]"}, {"from": "gpt", "value": "Potent reversible inhibitor of phenylethanolamine N-methyltransferase."}]