[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule appears as white to light gray granular solid. May be either the anhydrous compound or the tetrahydrate. Used in fertilizers, explosives and pyrotechnics."}, {"from": "gpt", "value": "[N+1][=Branch1][C][=O][Branch1][C][O-1][O-1].[N+1][=Branch1][C][=O][Branch1][C][O-1][O-1].[Ca+2]"}]