[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule appears as a white crystalline solid. Can explode on prolonged exposure to fire, heat or percussion. For the purpose of desensitization 33% mercuric oxycyanide is mixed with 67% mercuric cyanide. Toxic by inhalation and by ingestion. Used in medicine."}, {"from": "gpt", "value": "[C][#Branch1][C][#N][Hg+1].[C][#Branch1][C][#N][Hg+1].[O-2]"}]