[{"from": "human", "value": "Describe this molecule. [N-1][=N+1][=O]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. Density 1.22 g / cm3 at its boiling point of -89 \u00b0C. Boils to give a colorless gas that is sweet-smelling and moderately toxic. The gas has narcotic effects when inhaled (laughing gas). Shipped under refrigeration. Vapor pressure is at about 745 psig at 70 \u00b0F. Used to freeze foods and to manufacture other chemicals."}]