[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N][C][C][N][Ring1][=Branch1]"}, {"from": "gpt", "value": "Needle-like white or colorless crystals. Shipped as a solid or suspended in a liquid medium. Very corrosive to skin, eyes and mucous membranes. Solid turns dark when exposed to light. Flash point 190 \u00b0F. Used as a corrosion inhibitor and as an insecticide."}]