[{"from": "human", "value": "Could you provide a description of this molecule? [N+1][=Branch1][C][=O][Branch1][C][O-1][O-1].[N+1][=Branch1][C][=O][Branch1][C][O-1][O-1].[Ca+2]"}, {"from": "gpt", "value": "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."}]