[{"from": "human", "value": "Could you give me a brief overview of this molecule? [N+1][=Branch1][C][=O][Branch1][C][O-1][O-1].[K+1]"}, {"from": "gpt", "value": "The molecule is a nitrate of potassium. It is used as an oxidizing component of gunpowder, a preservative, a fertilizer, and can also be found in some toothpastes. Nitrite is a toxic compound known to cause methemoglobinemia. (L1137,  L1634)"}]