[{"from": "human", "value": "Could you provide a description of this molecule? [O].[O].[Cl-1].[Cl-1].[Sn+2]"}, {"from": "gpt", "value": "The molecule is a hydrate that is tin dichloride (anh.) combined with 2 mol eq. of water. It has a role as a food antioxidant, a food colour retention agent and a reducing agent. It contains a tin(II) chloride (anhydrous)."}]