[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch2][Ring1][O][C][Branch1][Branch2][C][O][N+1][=Branch1][C][=O][O-1][Branch1][Branch2][C][O][N+1][=Branch1][C][=O][O-1][C][O][N+1][=Branch1][C][=O][O-1][O][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a pentaerythritol nitrate in which all four hydroxy groups of pentaerythritol have been converted to the corresponding nitrate ester. It is a vasodilator with properties similar to those of glyceryl trinitrate, but with a more prolonged duration of action, and is used for treatment of angina pectoris. It is also one of the most powerful high explosives known and is a component of the plastic explosive known as Semtex. It has a role as an explosive and a vasodilator agent."}]