[{"from": "human", "value": "Provide a brief overview of this molecule. [O][=Sb][=Branch1][C][=O][O][Sb][=Branch1][C][=O][=O]"}, {"from": "gpt", "value": "The molecule is a chemical compound of antimony and oxygen. It always occurs in hydrated form, Sb2O5\u00b7nH2O. Antimony is a metallic element with the chemical symbol Sb and atomic number 51. Small amounts of antimony are found in the earth's crust. (L790, L741)\n"}]