[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an inorganic ammonium salt in which two of the terminal hydroxy groups of peroxydisulfuric acid are deprotonated and associated with ammonium ions as counter-cations. It has a role as an oxidising agent and an allergen. It contains a peroxydisulfate."}, {"from": "gpt", "value": "[NH4+1].[NH4+1].[O-1][S][=Branch1][C][=O][O][O][S][=Branch1][C][=O][O-1]"}]